218228840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{175991}}^1$

素因数の和:176033

約数の個数: 32

約数和(自身を含む): 506856960

約数和(自身を除く): 288628120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 175991, 351982, 703964, 879955, 1407928, 1759910, 3519820, 5455721, 7039640, 10911442, 21822884, 27278605, 43645768, 54557210, 109114420, 218228840]

約数ペア:

[(1, 218228840), (2, 109114420), (4, 54557210), (5, 43645768), (8, 27278605), (10, 21822884), (20, 10911442), (31, 7039640), (40, 5455721), (62, 3519820), (124, 1759910), (155, 1407928), (248, 879955), (310, 703964), (620, 351982), (1240, 175991)]