51808120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:405

約数の個数: 128

約数和(自身を含む): 147248640

約数和(自身を除く): 95440520

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 43, 52, 56, 65, 70, 86, 91, 104, 130, 140, 172, 182, 215, 260, 280, 301, 331, 344, 364, 430, 455, 520, 559, 602, 662, 728, 860, 910, 1118, 1204, 1324, 1505, 1655, 1720, 1820, 2236, 2317, 2408, 2648, 2795, 3010, 3310, 3640, 3913, 4303, 4472, 4634, 5590, 6020, 6620, 7826, 8606, 9268, 11180, 11585, 12040, 13240, 14233, 15652, 17212, 18536, 19565, 21515, 22360, 23170, 28466, 30121, 31304, 34424, 39130, 43030, 46340, 56932, 60242, 71165, 78260, 86060, 92680, 99631, 113864, 120484, 142330, 150605, 156520, 172120, 185029, 199262, 240968, 284660, 301210, 370058, 398524, 498155, 569320, 602420, 740116, 797048, 925145, 996310, 1204840, 1295203, 1480232, 1850290, 1992620, 2590406, 3700580, 3985240, 5180812, 6476015, 7401160, 10361624, 12952030, 25904060, 51808120]

約数ペア:

[(1, 51808120), (2, 25904060), (4, 12952030), (5, 10361624), (7, 7401160), (8, 6476015), (10, 5180812), (13, 3985240), (14, 3700580), (20, 2590406), (26, 1992620), (28, 1850290), (35, 1480232), (40, 1295203), (43, 1204840), (52, 996310), (56, 925145), (65, 797048), (70, 740116), (86, 602420), (91, 569320), (104, 498155), (130, 398524), (140, 370058), (172, 301210), (182, 284660), (215, 240968), (260, 199262), (280, 185029), (301, 172120), (331, 156520), (344, 150605), (364, 142330), (430, 120484), (455, 113864), (520, 99631), (559, 92680), (602, 86060), (662, 78260), (728, 71165), (860, 60242), (910, 56932), (1118, 46340), (1204, 43030), (1324, 39130), (1505, 34424), (1655, 31304), (1720, 30121), (1820, 28466), (2236, 23170), (2317, 22360), (2408, 21515), (2648, 19565), (2795, 18536), (3010, 17212), (3310, 15652), (3640, 14233), (3913, 13240), (4303, 12040), (4472, 11585), (4634, 11180), (5590, 9268), (6020, 8606), (6620, 7826)]