20176051780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6781}}^1\times {\mathrm{4799}}^1$

素因数の和:11620

約数の個数: 48

約数和(自身を含む): 43752038400

約数和(自身を除く): 23575986620

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 4799, 6781, 9598, 13562, 19196, 23995, 27124, 33905, 47990, 67810, 95980, 135620, 148769, 210211, 297538, 420422, 595076, 743845, 840844, 1051055, 1487690, 2102110, 2975380, 4204220, 32542019, 65084038, 130168076, 162710095, 325420190, 650840380, 1008802589, 2017605178, 4035210356, 5044012945, 10088025890, 20176051780]

約数ペア:

[(1, 20176051780), (2, 10088025890), (4, 5044012945), (5, 4035210356), (10, 2017605178), (20, 1008802589), (31, 650840380), (62, 325420190), (124, 162710095), (155, 130168076), (310, 65084038), (620, 32542019), (4799, 4204220), (6781, 2975380), (9598, 2102110), (13562, 1487690), (19196, 1051055), (23995, 840844), (27124, 743845), (33905, 595076), (47990, 420422), (67810, 297538), (95980, 210211), (135620, 148769)]