19911373020

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{159623}}^1$

素因数の和:159662

約数の個数: 240

約数和(自身を含む): 77876080128

約数和(自身を除く): 57964707108

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 27, 28, 30, 33, 35, 36, 42, 44, 45, 54, 55, 60, 63, 66, 70, 77, 81, 84, 90, 99, 105, 108, 110, 126, 132, 135, 140, 154, 162, 165, 180, 189, 198, 210, 220, 231, 252, 270, 297, 308, 315, 324, 330, 378, 385, 396, 405, 420, 462, 495, 540, 567, 594, 630, 660, 693, 756, 770, 810, 891, 924, 945, 990, 1134, 1155, 1188, 1260, 1386, 1485, 1540, 1620, 1782, 1890, 1980, 2079, 2268, 2310, 2772, 2835, 2970, 3465, 3564, 3780, 4158, 4455, 4620, 5670, 5940, 6237, 6930, 8316, 8910, 10395, 11340, 12474, 13860, 17820, 20790, 24948, 31185, 41580, 62370, 124740, 159623, 319246, 478869, 638492, 798115, 957738, 1117361, 1436607, 1596230, 1755853, 1915476, 2234722, 2394345, 2873214, 3192460, 3352083, 3511706, 4309821, 4469444, 4788690, 5267559, 5586805, 5746428, 6704166, 7023412, 7183035, 8619642, 8779265, 9577380, 10056249, 10535118, 11173610, 12290971, 12929463, 13408332, 14366070, 15802677, 16760415, 17239284, 17558530, 20112498, 21070236, 21549105, 22347220, 24581942, 25858926, 26337795, 28732140, 30168747, 31605354, 33520830, 35117060, 36872913, 40224996, 43098210, 47408031, 49163884, 50281245, 51717852, 52675590, 60337494, 61454855, 63210708, 64647315, 67041660, 73745826, 79013385, 86196420, 90506241, 94816062, 100562490, 105351180, 110618739, 120674988, 122909710, 129294630, 142224093, 147491652, 150843735, 158026770, 181012482, 184364565, 189632124, 201124980, 221237478, 237040155, 245819420, 258589260, 284448186, 301687470, 316053540, 331856217, 362024964, 368729130, 442474956, 452531205, 474080310, 553093695, 568896372, 603374940, 663712434, 711120465, 737458260, 905062410, 948160620, 995568651, 1106187390, 1327424868, 1422240930, 1659281085, 1810124820, 1991137302, 2212374780, 2844481860, 3318562170, 3982274604, 4977843255, 6637124340, 9955686510, 19911373020]

約数ペア:

[(1, 19911373020), (2, 9955686510), (3, 6637124340), (4, 4977843255), (5, 3982274604), (6, 3318562170), (7, 2844481860), (9, 2212374780), (10, 1991137302), (11, 1810124820), (12, 1659281085), (14, 1422240930), (15, 1327424868), (18, 1106187390), (20, 995568651), (21, 948160620), (22, 905062410), (27, 737458260), (28, 711120465), (30, 663712434), (33, 603374940), (35, 568896372), (36, 553093695), (42, 474080310), (44, 452531205), (45, 442474956), (54, 368729130), (55, 362024964), (60, 331856217), (63, 316053540), (66, 301687470), (70, 284448186), (77, 258589260), (81, 245819420), (84, 237040155), (90, 221237478), (99, 201124980), (105, 189632124), (108, 184364565), (110, 181012482), (126, 158026770), (132, 150843735), (135, 147491652), (140, 142224093), (154, 129294630), (162, 122909710), (165, 120674988), (180, 110618739), (189, 105351180), (198, 100562490), (210, 94816062), (220, 90506241), (231, 86196420), (252, 79013385), (270, 73745826), (297, 67041660), (308, 64647315), (315, 63210708), (324, 61454855), (330, 60337494), (378, 52675590), (385, 51717852), (396, 50281245), (405, 49163884), (420, 47408031), (462, 43098210), (495, 40224996), (540, 36872913), (567, 35117060), (594, 33520830), (630, 31605354), (660, 30168747), (693, 28732140), (756, 26337795), (770, 25858926), (810, 24581942), (891, 22347220), (924, 21549105), (945, 21070236), (990, 20112498), (1134, 17558530), (1155, 17239284), (1188, 16760415), (1260, 15802677), (1386, 14366070), (1485, 13408332), (1540, 12929463), (1620, 12290971), (1782, 11173610), (1890, 10535118), (1980, 10056249), (2079, 9577380), (2268, 8779265), (2310, 8619642), (2772, 7183035), (2835, 7023412), (2970, 6704166), (3465, 5746428), (3564, 5586805), (3780, 5267559), (4158, 4788690), (4455, 4469444), (4620, 4309821), (5670, 3511706), (5940, 3352083), (6237, 3192460), (6930, 2873214), (8316, 2394345), (8910, 2234722), (10395, 1915476), (11340, 1755853), (12474, 1596230), (13860, 1436607), (17820, 1117361), (20790, 957738), (24948, 798115), (31185, 638492), (41580, 478869), (62370, 319246), (124740, 159623)]