81725910

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{389171}}^1$

素因数の和:389188

約数の個数: 32

約数和(自身を含む): 224163072

約数和(自身を除く): 142437162

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 389171, 778342, 1167513, 1945855, 2335026, 2724197, 3891710, 5448394, 5837565, 8172591, 11675130, 13620985, 16345182, 27241970, 40862955, 81725910]

約数ペア:

[(1, 81725910), (2, 40862955), (3, 27241970), (5, 16345182), (6, 13620985), (7, 11675130), (10, 8172591), (14, 5837565), (15, 5448394), (21, 3891710), (30, 2724197), (35, 2335026), (42, 1945855), (70, 1167513), (105, 778342), (210, 389171)]