20238325640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1\times {\mathrm{1367}}^1$

素因数の和:1863

約数の個数: 128

約数和(自身を含む): 49890193920

約数和(自身を除く): 29651868280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 71, 104, 130, 142, 260, 284, 355, 401, 520, 568, 710, 802, 923, 1367, 1420, 1604, 1846, 2005, 2734, 2840, 3208, 3692, 4010, 4615, 5213, 5468, 6835, 7384, 8020, 9230, 10426, 10936, 13670, 16040, 17771, 18460, 20852, 26065, 27340, 28471, 35542, 36920, 41704, 52130, 54680, 56942, 71084, 88855, 97057, 104260, 113884, 142168, 142355, 177710, 194114, 208520, 227768, 284710, 355420, 370123, 388228, 485285, 548167, 569420, 710840, 740246, 776456, 970570, 1096334, 1138840, 1261741, 1480492, 1850615, 1941140, 2192668, 2523482, 2740835, 2960984, 3701230, 3882280, 4385336, 5046964, 5481670, 6308705, 7126171, 7402460, 10093928, 10963340, 12617410, 14252342, 14804920, 21926680, 25234820, 28504684, 35630855, 38919857, 50469640, 57009368, 71261710, 77839714, 142523420, 155679428, 194599285, 285046840, 311358856, 389198570, 505958141, 778397140, 1011916282, 1556794280, 2023832564, 2529790705, 4047665128, 5059581410, 10119162820, 20238325640]

約数ペア:

[(1, 20238325640), (2, 10119162820), (4, 5059581410), (5, 4047665128), (8, 2529790705), (10, 2023832564), (13, 1556794280), (20, 1011916282), (26, 778397140), (40, 505958141), (52, 389198570), (65, 311358856), (71, 285046840), (104, 194599285), (130, 155679428), (142, 142523420), (260, 77839714), (284, 71261710), (355, 57009368), (401, 50469640), (520, 38919857), (568, 35630855), (710, 28504684), (802, 25234820), (923, 21926680), (1367, 14804920), (1420, 14252342), (1604, 12617410), (1846, 10963340), (2005, 10093928), (2734, 7402460), (2840, 7126171), (3208, 6308705), (3692, 5481670), (4010, 5046964), (4615, 4385336), (5213, 3882280), (5468, 3701230), (6835, 2960984), (7384, 2740835), (8020, 2523482), (9230, 2192668), (10426, 1941140), (10936, 1850615), (13670, 1480492), (16040, 1261741), (17771, 1138840), (18460, 1096334), (20852, 970570), (26065, 776456), (27340, 740246), (28471, 710840), (35542, 569420), (36920, 548167), (41704, 485285), (52130, 388228), (54680, 370123), (56942, 355420), (71084, 284710), (88855, 227768), (97057, 208520), (104260, 194114), (113884, 177710), (142168, 142355)]