65513980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{66851}}^1$

素因数の和:66874

約数の個数: 36

約数和(自身を含む): 160043688

約数和(自身を除く): 94529708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 66851, 133702, 267404, 334255, 467957, 668510, 935914, 1337020, 1871828, 2339785, 3275699, 4679570, 6551398, 9359140, 13102796, 16378495, 32756990, 65513980]

約数ペア:

[(1, 65513980), (2, 32756990), (4, 16378495), (5, 13102796), (7, 9359140), (10, 6551398), (14, 4679570), (20, 3275699), (28, 2339785), (35, 1871828), (49, 1337020), (70, 935914), (98, 668510), (140, 467957), (196, 334255), (245, 267404), (490, 133702), (980, 66851)]