19227780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1$

素因数の和:128

約数の個数: 240

約数和(自身を含む): 71717184

約数和(自身を除く): 52489404

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 18, 20, 22, 26, 27, 30, 33, 36, 39, 44, 45, 52, 54, 55, 60, 65, 66, 78, 81, 83, 90, 99, 108, 110, 117, 130, 132, 135, 143, 156, 162, 165, 166, 180, 195, 198, 220, 234, 249, 260, 270, 286, 297, 324, 330, 332, 351, 390, 396, 405, 415, 429, 468, 495, 498, 540, 572, 585, 594, 660, 702, 715, 747, 780, 810, 830, 858, 891, 913, 990, 996, 1053, 1079, 1170, 1188, 1245, 1287, 1404, 1430, 1485, 1494, 1620, 1660, 1716, 1755, 1782, 1826, 1980, 2106, 2145, 2158, 2241, 2340, 2490, 2574, 2739, 2860, 2970, 2988, 3237, 3510, 3564, 3652, 3735, 3861, 4212, 4290, 4316, 4455, 4482, 4565, 4980, 5148, 5265, 5395, 5478, 5940, 6435, 6474, 6723, 7020, 7470, 7722, 8217, 8580, 8910, 8964, 9130, 9711, 10530, 10790, 10956, 11205, 11583, 11869, 12870, 12948, 13446, 13695, 14940, 15444, 16185, 16434, 17820, 18260, 19305, 19422, 21060, 21580, 22410, 23166, 23738, 24651, 25740, 26892, 27390, 29133, 32370, 32868, 33615, 35607, 38610, 38844, 41085, 44820, 46332, 47476, 48555, 49302, 54780, 57915, 58266, 59345, 64740, 67230, 71214, 73953, 77220, 82170, 87399, 97110, 98604, 106821, 115830, 116532, 118690, 123255, 134460, 142428, 145665, 147906, 164340, 174798, 178035, 194220, 213642, 231660, 237380, 246510, 291330, 295812, 320463, 349596, 356070, 369765, 427284, 436995, 493020, 534105, 582660, 640926, 712140, 739530, 873990, 961389, 1068210, 1281852, 1479060, 1602315, 1747980, 1922778, 2136420, 3204630, 3845556, 4806945, 6409260, 9613890, 19227780]

約数ペア:

[(1, 19227780), (2, 9613890), (3, 6409260), (4, 4806945), (5, 3845556), (6, 3204630), (9, 2136420), (10, 1922778), (11, 1747980), (12, 1602315), (13, 1479060), (15, 1281852), (18, 1068210), (20, 961389), (22, 873990), (26, 739530), (27, 712140), (30, 640926), (33, 582660), (36, 534105), (39, 493020), (44, 436995), (45, 427284), (52, 369765), (54, 356070), (55, 349596), (60, 320463), (65, 295812), (66, 291330), (78, 246510), (81, 237380), (83, 231660), (90, 213642), (99, 194220), (108, 178035), (110, 174798), (117, 164340), (130, 147906), (132, 145665), (135, 142428), (143, 134460), (156, 123255), (162, 118690), (165, 116532), (166, 115830), (180, 106821), (195, 98604), (198, 97110), (220, 87399), (234, 82170), (249, 77220), (260, 73953), (270, 71214), (286, 67230), (297, 64740), (324, 59345), (330, 58266), (332, 57915), (351, 54780), (390, 49302), (396, 48555), (405, 47476), (415, 46332), (429, 44820), (468, 41085), (495, 38844), (498, 38610), (540, 35607), (572, 33615), (585, 32868), (594, 32370), (660, 29133), (702, 27390), (715, 26892), (747, 25740), (780, 24651), (810, 23738), (830, 23166), (858, 22410), (891, 21580), (913, 21060), (990, 19422), (996, 19305), (1053, 18260), (1079, 17820), (1170, 16434), (1188, 16185), (1245, 15444), (1287, 14940), (1404, 13695), (1430, 13446), (1485, 12948), (1494, 12870), (1620, 11869), (1660, 11583), (1716, 11205), (1755, 10956), (1782, 10790), (1826, 10530), (1980, 9711), (2106, 9130), (2145, 8964), (2158, 8910), (2241, 8580), (2340, 8217), (2490, 7722), (2574, 7470), (2739, 7020), (2860, 6723), (2970, 6474), (2988, 6435), (3237, 5940), (3510, 5478), (3564, 5395), (3652, 5265), (3735, 5148), (3861, 4980), (4212, 4565), (4290, 4482), (4316, 4455)]