21730680

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1$

素因数の和:395

約数の個数: 160

約数和(自身を含む): 77101200

約数和(自身を除く): 55370520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 81, 90, 95, 108, 114, 120, 135, 152, 162, 171, 180, 190, 216, 228, 270, 285, 324, 342, 353, 360, 380, 405, 456, 513, 540, 570, 648, 684, 706, 760, 810, 855, 1026, 1059, 1080, 1140, 1368, 1412, 1539, 1620, 1710, 1765, 2052, 2118, 2280, 2565, 2824, 3078, 3177, 3240, 3420, 3530, 4104, 4236, 5130, 5295, 6156, 6354, 6707, 6840, 7060, 7695, 8472, 9531, 10260, 10590, 12312, 12708, 13414, 14120, 15390, 15885, 19062, 20121, 20520, 21180, 25416, 26828, 28593, 30780, 31770, 33535, 38124, 40242, 42360, 47655, 53656, 57186, 60363, 61560, 63540, 67070, 76248, 80484, 95310, 100605, 114372, 120726, 127080, 134140, 142965, 160968, 181089, 190620, 201210, 228744, 241452, 268280, 285930, 301815, 362178, 381240, 402420, 482904, 543267, 571860, 603630, 724356, 804840, 905445, 1086534, 1143720, 1207260, 1448712, 1810890, 2173068, 2414520, 2716335, 3621780, 4346136, 5432670, 7243560, 10865340, 21730680]

約数ペア:

[(1, 21730680), (2, 10865340), (3, 7243560), (4, 5432670), (5, 4346136), (6, 3621780), (8, 2716335), (9, 2414520), (10, 2173068), (12, 1810890), (15, 1448712), (18, 1207260), (19, 1143720), (20, 1086534), (24, 905445), (27, 804840), (30, 724356), (36, 603630), (38, 571860), (40, 543267), (45, 482904), (54, 402420), (57, 381240), (60, 362178), (72, 301815), (76, 285930), (81, 268280), (90, 241452), (95, 228744), (108, 201210), (114, 190620), (120, 181089), (135, 160968), (152, 142965), (162, 134140), (171, 127080), (180, 120726), (190, 114372), (216, 100605), (228, 95310), (270, 80484), (285, 76248), (324, 67070), (342, 63540), (353, 61560), (360, 60363), (380, 57186), (405, 53656), (456, 47655), (513, 42360), (540, 40242), (570, 38124), (648, 33535), (684, 31770), (706, 30780), (760, 28593), (810, 26828), (855, 25416), (1026, 21180), (1059, 20520), (1080, 20121), (1140, 19062), (1368, 15885), (1412, 15390), (1539, 14120), (1620, 13414), (1710, 12708), (1765, 12312), (2052, 10590), (2118, 10260), (2280, 9531), (2565, 8472), (2824, 7695), (3078, 7060), (3177, 6840), (3240, 6707), (3420, 6354), (3530, 6156), (4104, 5295), (4236, 5130)]