1640821920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{56039}}^1$

素因数の和:56118

約数の個数: 96

約数和(自身を含む): 5253413760

約数和(自身を除く): 3612591840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 61, 80, 96, 120, 122, 160, 183, 240, 244, 305, 366, 480, 488, 610, 732, 915, 976, 1220, 1464, 1830, 1952, 2440, 2928, 3660, 4880, 5856, 7320, 9760, 14640, 29280, 56039, 112078, 168117, 224156, 280195, 336234, 448312, 560390, 672468, 840585, 896624, 1120780, 1344936, 1681170, 1793248, 2241560, 2689872, 3362340, 3418379, 4483120, 5379744, 6724680, 6836758, 8966240, 10255137, 13449360, 13673516, 17091895, 20510274, 26898720, 27347032, 34183790, 41020548, 51275685, 54694064, 68367580, 82041096, 102551370, 109388128, 136735160, 164082192, 205102740, 273470320, 328164384, 410205480, 546940640, 820410960, 1640821920]

約数ペア:

[(1, 1640821920), (2, 820410960), (3, 546940640), (4, 410205480), (5, 328164384), (6, 273470320), (8, 205102740), (10, 164082192), (12, 136735160), (15, 109388128), (16, 102551370), (20, 82041096), (24, 68367580), (30, 54694064), (32, 51275685), (40, 41020548), (48, 34183790), (60, 27347032), (61, 26898720), (80, 20510274), (96, 17091895), (120, 13673516), (122, 13449360), (160, 10255137), (183, 8966240), (240, 6836758), (244, 6724680), (305, 5379744), (366, 4483120), (480, 3418379), (488, 3362340), (610, 2689872), (732, 2241560), (915, 1793248), (976, 1681170), (1220, 1344936), (1464, 1120780), (1830, 896624), (1952, 840585), (2440, 672468), (2928, 560390), (3660, 448312), (4880, 336234), (5856, 280195), (7320, 224156), (9760, 168117), (14640, 112078), (29280, 56039)]