20984040

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{757}}^1$

素因数の和:792

約数の個数: 192

約数和(自身を含む): 85138560

約数和(自身を除く): 64154520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 55, 56, 60, 63, 66, 70, 72, 77, 84, 88, 90, 99, 105, 110, 120, 126, 132, 140, 154, 165, 168, 180, 198, 210, 220, 231, 252, 264, 280, 308, 315, 330, 360, 385, 396, 420, 440, 462, 495, 504, 616, 630, 660, 693, 757, 770, 792, 840, 924, 990, 1155, 1260, 1320, 1386, 1514, 1540, 1848, 1980, 2271, 2310, 2520, 2772, 3028, 3080, 3465, 3785, 3960, 4542, 4620, 5299, 5544, 6056, 6813, 6930, 7570, 8327, 9084, 9240, 10598, 11355, 13626, 13860, 15140, 15897, 16654, 18168, 21196, 22710, 24981, 26495, 27252, 27720, 30280, 31794, 33308, 34065, 41635, 42392, 45420, 47691, 49962, 52990, 54504, 58289, 63588, 66616, 68130, 74943, 79485, 83270, 90840, 95382, 99924, 105980, 116578, 124905, 127176, 136260, 149886, 158970, 166540, 174867, 190764, 199848, 211960, 233156, 238455, 249810, 272520, 291445, 299772, 317940, 333080, 349734, 374715, 381528, 466312, 476910, 499620, 524601, 582890, 599544, 635880, 699468, 749430, 874335, 953820, 999240, 1049202, 1165780, 1398936, 1498860, 1748670, 1907640, 2098404, 2331560, 2623005, 2997720, 3497340, 4196808, 5246010, 6994680, 10492020, 20984040]

約数ペア:

[(1, 20984040), (2, 10492020), (3, 6994680), (4, 5246010), (5, 4196808), (6, 3497340), (7, 2997720), (8, 2623005), (9, 2331560), (10, 2098404), (11, 1907640), (12, 1748670), (14, 1498860), (15, 1398936), (18, 1165780), (20, 1049202), (21, 999240), (22, 953820), (24, 874335), (28, 749430), (30, 699468), (33, 635880), (35, 599544), (36, 582890), (40, 524601), (42, 499620), (44, 476910), (45, 466312), (55, 381528), (56, 374715), (60, 349734), (63, 333080), (66, 317940), (70, 299772), (72, 291445), (77, 272520), (84, 249810), (88, 238455), (90, 233156), (99, 211960), (105, 199848), (110, 190764), (120, 174867), (126, 166540), (132, 158970), (140, 149886), (154, 136260), (165, 127176), (168, 124905), (180, 116578), (198, 105980), (210, 99924), (220, 95382), (231, 90840), (252, 83270), (264, 79485), (280, 74943), (308, 68130), (315, 66616), (330, 63588), (360, 58289), (385, 54504), (396, 52990), (420, 49962), (440, 47691), (462, 45420), (495, 42392), (504, 41635), (616, 34065), (630, 33308), (660, 31794), (693, 30280), (757, 27720), (770, 27252), (792, 26495), (840, 24981), (924, 22710), (990, 21196), (1155, 18168), (1260, 16654), (1320, 15897), (1386, 15140), (1514, 13860), (1540, 13626), (1848, 11355), (1980, 10598), (2271, 9240), (2310, 9084), (2520, 8327), (2772, 7570), (3028, 6930), (3080, 6813), (3465, 6056), (3785, 5544), (3960, 5299), (4542, 4620)]