263440790

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{19763}}^1$

素因数の和:19844

約数の個数: 32

約数和(自身を含む): 500898816

約数和(自身を除く): 237458026

約数列:

[1, 2, 5, 10, 31, 43, 62, 86, 155, 215, 310, 430, 1333, 2666, 6665, 13330, 19763, 39526, 98815, 197630, 612653, 849809, 1225306, 1699618, 3063265, 4249045, 6126530, 8498090, 26344079, 52688158, 131720395, 263440790]

約数ペア:

[(1, 263440790), (2, 131720395), (5, 52688158), (10, 26344079), (31, 8498090), (43, 6126530), (62, 4249045), (86, 3063265), (155, 1699618), (215, 1225306), (310, 849809), (430, 612653), (1333, 197630), (2666, 98815), (6665, 39526), (13330, 19763)]