1640883400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{461}}^1$

素因数の和:564

約数の個数: 144

約数和(自身を含む): 4231721340

約数和(自身を除く): 2590837940

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 37, 40, 50, 52, 65, 74, 100, 104, 130, 148, 185, 200, 260, 296, 325, 370, 461, 481, 520, 650, 740, 922, 925, 962, 1300, 1369, 1480, 1844, 1850, 1924, 2305, 2405, 2600, 2738, 3688, 3700, 3848, 4610, 4810, 5476, 5993, 6845, 7400, 9220, 9620, 10952, 11525, 11986, 12025, 13690, 17057, 17797, 18440, 19240, 23050, 23972, 24050, 27380, 29965, 34114, 34225, 35594, 46100, 47944, 48100, 54760, 59930, 68228, 68450, 71188, 85285, 88985, 92200, 96200, 119860, 136456, 136900, 142376, 149825, 170570, 177970, 221741, 239720, 273800, 299650, 341140, 355940, 426425, 443482, 444925, 599300, 631109, 682280, 711880, 852850, 886964, 889850, 1108705, 1198600, 1262218, 1705700, 1773928, 1779700, 2217410, 2524436, 3155545, 3411400, 3559400, 4434820, 5048872, 5543525, 6311090, 8204417, 8869640, 11087050, 12622180, 15777725, 16408834, 22174100, 25244360, 31555450, 32817668, 41022085, 44348200, 63110900, 65635336, 82044170, 126221800, 164088340, 205110425, 328176680, 410220850, 820441700, 1640883400]

約数ペア:

[(1, 1640883400), (2, 820441700), (4, 410220850), (5, 328176680), (8, 205110425), (10, 164088340), (13, 126221800), (20, 82044170), (25, 65635336), (26, 63110900), (37, 44348200), (40, 41022085), (50, 32817668), (52, 31555450), (65, 25244360), (74, 22174100), (100, 16408834), (104, 15777725), (130, 12622180), (148, 11087050), (185, 8869640), (200, 8204417), (260, 6311090), (296, 5543525), (325, 5048872), (370, 4434820), (461, 3559400), (481, 3411400), (520, 3155545), (650, 2524436), (740, 2217410), (922, 1779700), (925, 1773928), (962, 1705700), (1300, 1262218), (1369, 1198600), (1480, 1108705), (1844, 889850), (1850, 886964), (1924, 852850), (2305, 711880), (2405, 682280), (2600, 631109), (2738, 599300), (3688, 444925), (3700, 443482), (3848, 426425), (4610, 355940), (4810, 341140), (5476, 299650), (5993, 273800), (6845, 239720), (7400, 221741), (9220, 177970), (9620, 170570), (10952, 149825), (11525, 142376), (11986, 136900), (12025, 136456), (13690, 119860), (17057, 96200), (17797, 92200), (18440, 88985), (19240, 85285), (23050, 71188), (23972, 68450), (24050, 68228), (27380, 59930), (29965, 54760), (34114, 48100), (34225, 47944), (35594, 46100)]