400996920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1889}}^1$

素因数の和:1993

約数の個数: 128

約数和(自身を含む): 1265544000

約数和(自身を除く): 864547080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 61, 87, 116, 120, 122, 145, 174, 183, 232, 244, 290, 305, 348, 366, 435, 488, 580, 610, 696, 732, 870, 915, 1160, 1220, 1464, 1740, 1769, 1830, 1889, 2440, 3480, 3538, 3660, 3778, 5307, 5667, 7076, 7320, 7556, 8845, 9445, 10614, 11334, 14152, 15112, 17690, 18890, 21228, 22668, 26535, 28335, 35380, 37780, 42456, 45336, 53070, 54781, 56670, 70760, 75560, 106140, 109562, 113340, 115229, 164343, 212280, 219124, 226680, 230458, 273905, 328686, 345687, 438248, 460916, 547810, 576145, 657372, 691374, 821715, 921832, 1095620, 1152290, 1314744, 1382748, 1643430, 1728435, 2191240, 2304580, 2765496, 3286860, 3341641, 3456870, 4609160, 6573720, 6683282, 6913740, 10024923, 13366564, 13827480, 16708205, 20049846, 26733128, 33416410, 40099692, 50124615, 66832820, 80199384, 100249230, 133665640, 200498460, 400996920]

約数ペア:

[(1, 400996920), (2, 200498460), (3, 133665640), (4, 100249230), (5, 80199384), (6, 66832820), (8, 50124615), (10, 40099692), (12, 33416410), (15, 26733128), (20, 20049846), (24, 16708205), (29, 13827480), (30, 13366564), (40, 10024923), (58, 6913740), (60, 6683282), (61, 6573720), (87, 4609160), (116, 3456870), (120, 3341641), (122, 3286860), (145, 2765496), (174, 2304580), (183, 2191240), (232, 1728435), (244, 1643430), (290, 1382748), (305, 1314744), (348, 1152290), (366, 1095620), (435, 921832), (488, 821715), (580, 691374), (610, 657372), (696, 576145), (732, 547810), (870, 460916), (915, 438248), (1160, 345687), (1220, 328686), (1464, 273905), (1740, 230458), (1769, 226680), (1830, 219124), (1889, 212280), (2440, 164343), (3480, 115229), (3538, 113340), (3660, 109562), (3778, 106140), (5307, 75560), (5667, 70760), (7076, 56670), (7320, 54781), (7556, 53070), (8845, 45336), (9445, 42456), (10614, 37780), (11334, 35380), (14152, 28335), (15112, 26535), (17690, 22668), (18890, 21228)]