86760940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{19991}}^1$

素因数の和:20038

約数の個数: 48

約数和(自身を含む): 214953984

約数和(自身を除く): 128193044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 19991, 39982, 79964, 99955, 139937, 199910, 279874, 399820, 559748, 619721, 699685, 1239442, 1399370, 2478884, 2798740, 3098605, 4338047, 6197210, 8676094, 12394420, 17352188, 21690235, 43380470, 86760940]

約数ペア:

[(1, 86760940), (2, 43380470), (4, 21690235), (5, 17352188), (7, 12394420), (10, 8676094), (14, 6197210), (20, 4338047), (28, 3098605), (31, 2798740), (35, 2478884), (62, 1399370), (70, 1239442), (124, 699685), (140, 619721), (155, 559748), (217, 399820), (310, 279874), (434, 199910), (620, 139937), (868, 99955), (1085, 79964), (2170, 39982), (4340, 19991)]