20695910

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{661}}^1$

素因数の和:800

約数の個数: 32

約数和(自身を含む): 38893824

約数和(自身を除く): 18197914

約数列:

[1, 2, 5, 10, 31, 62, 101, 155, 202, 310, 505, 661, 1010, 1322, 3131, 3305, 6262, 6610, 15655, 20491, 31310, 40982, 66761, 102455, 133522, 204910, 333805, 667610, 2069591, 4139182, 10347955, 20695910]

約数ペア:

[(1, 20695910), (2, 10347955), (5, 4139182), (10, 2069591), (31, 667610), (62, 333805), (101, 204910), (155, 133522), (202, 102455), (310, 66761), (505, 40982), (661, 31310), (1010, 20491), (1322, 15655), (3131, 6610), (3305, 6262)]