266774840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{215141}}^1$

素因数の和:215183

約数の個数: 32

約数和(自身を含む): 619608960

約数和(自身を除く): 352834120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 215141, 430282, 860564, 1075705, 1721128, 2151410, 4302820, 6669371, 8605640, 13338742, 26677484, 33346855, 53354968, 66693710, 133387420, 266774840]

約数ペア:

[(1, 266774840), (2, 133387420), (4, 66693710), (5, 53354968), (8, 33346855), (10, 26677484), (20, 13338742), (31, 8605640), (40, 6669371), (62, 4302820), (124, 2151410), (155, 1721128), (248, 1075705), (310, 860564), (620, 430282), (1240, 215141)]