21580200

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{631}}^1$

素因数の和:672

約数の個数: 144

約数和(自身を含む): 76408800

約数和(自身を除く): 54828600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 25, 30, 36, 38, 40, 45, 50, 57, 60, 72, 75, 76, 90, 95, 100, 114, 120, 150, 152, 171, 180, 190, 200, 225, 228, 285, 300, 342, 360, 380, 450, 456, 475, 570, 600, 631, 684, 760, 855, 900, 950, 1140, 1262, 1368, 1425, 1710, 1800, 1893, 1900, 2280, 2524, 2850, 3155, 3420, 3786, 3800, 4275, 5048, 5679, 5700, 6310, 6840, 7572, 8550, 9465, 11358, 11400, 11989, 12620, 15144, 15775, 17100, 18930, 22716, 23978, 25240, 28395, 31550, 34200, 35967, 37860, 45432, 47325, 47956, 56790, 59945, 63100, 71934, 75720, 94650, 95912, 107901, 113580, 119890, 126200, 141975, 143868, 179835, 189300, 215802, 227160, 239780, 283950, 287736, 299725, 359670, 378600, 431604, 479560, 539505, 567900, 599450, 719340, 863208, 899175, 1079010, 1135800, 1198900, 1438680, 1798350, 2158020, 2397800, 2697525, 3596700, 4316040, 5395050, 7193400, 10790100, 21580200]

約数ペア:

[(1, 21580200), (2, 10790100), (3, 7193400), (4, 5395050), (5, 4316040), (6, 3596700), (8, 2697525), (9, 2397800), (10, 2158020), (12, 1798350), (15, 1438680), (18, 1198900), (19, 1135800), (20, 1079010), (24, 899175), (25, 863208), (30, 719340), (36, 599450), (38, 567900), (40, 539505), (45, 479560), (50, 431604), (57, 378600), (60, 359670), (72, 299725), (75, 287736), (76, 283950), (90, 239780), (95, 227160), (100, 215802), (114, 189300), (120, 179835), (150, 143868), (152, 141975), (171, 126200), (180, 119890), (190, 113580), (200, 107901), (225, 95912), (228, 94650), (285, 75720), (300, 71934), (342, 63100), (360, 59945), (380, 56790), (450, 47956), (456, 47325), (475, 45432), (570, 37860), (600, 35967), (631, 34200), (684, 31550), (760, 28395), (855, 25240), (900, 23978), (950, 22716), (1140, 18930), (1262, 17100), (1368, 15775), (1425, 15144), (1710, 12620), (1800, 11989), (1893, 11400), (1900, 11358), (2280, 9465), (2524, 8550), (2850, 7572), (3155, 6840), (3420, 6310), (3786, 5700), (3800, 5679), (4275, 5048)]