64541080

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:364

約数の個数: 64

約数和(自身を含む): 148975200

約数和(自身を除く): 84434120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 113, 131, 218, 226, 262, 436, 452, 524, 545, 565, 655, 872, 904, 1048, 1090, 1130, 1310, 2180, 2260, 2620, 4360, 4520, 5240, 12317, 14279, 14803, 24634, 28558, 29606, 49268, 57116, 59212, 61585, 71395, 74015, 98536, 114232, 118424, 123170, 142790, 148030, 246340, 285580, 296060, 492680, 571160, 592120, 1613527, 3227054, 6454108, 8067635, 12908216, 16135270, 32270540, 64541080]

約数ペア:

[(1, 64541080), (2, 32270540), (4, 16135270), (5, 12908216), (8, 8067635), (10, 6454108), (20, 3227054), (40, 1613527), (109, 592120), (113, 571160), (131, 492680), (218, 296060), (226, 285580), (262, 246340), (436, 148030), (452, 142790), (524, 123170), (545, 118424), (565, 114232), (655, 98536), (872, 74015), (904, 71395), (1048, 61585), (1090, 59212), (1130, 57116), (1310, 49268), (2180, 29606), (2260, 28558), (2620, 24634), (4360, 14803), (4520, 14279), (5240, 12317)]