65978120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{701}}^1$

素因数の和:906

約数の個数: 64

約数和(自身を含む): 160982640

約数和(自身を除く): 95004520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 181, 260, 362, 520, 701, 724, 905, 1402, 1448, 1810, 2353, 2804, 3505, 3620, 4706, 5608, 7010, 7240, 9113, 9412, 11765, 14020, 18226, 18824, 23530, 28040, 36452, 45565, 47060, 72904, 91130, 94120, 126881, 182260, 253762, 364520, 507524, 634405, 1015048, 1268810, 1649453, 2537620, 3298906, 5075240, 6597812, 8247265, 13195624, 16494530, 32989060, 65978120]

約数ペア:

[(1, 65978120), (2, 32989060), (4, 16494530), (5, 13195624), (8, 8247265), (10, 6597812), (13, 5075240), (20, 3298906), (26, 2537620), (40, 1649453), (52, 1268810), (65, 1015048), (104, 634405), (130, 507524), (181, 364520), (260, 253762), (362, 182260), (520, 126881), (701, 94120), (724, 91130), (905, 72904), (1402, 47060), (1448, 45565), (1810, 36452), (2353, 28040), (2804, 23530), (3505, 18824), (3620, 18226), (4706, 14020), (5608, 11765), (7010, 9412), (7240, 9113)]