20132050

素因数分解:

$2^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:243

約数の個数: 48

約数和(自身を含む): 39051072

約数和(自身を除く): 18919022

約数列:

[1, 2, 5, 10, 25, 50, 53, 71, 106, 107, 142, 214, 265, 355, 530, 535, 710, 1070, 1325, 1775, 2650, 2675, 3550, 3763, 5350, 5671, 7526, 7597, 11342, 15194, 18815, 28355, 37630, 37985, 56710, 75970, 94075, 141775, 188150, 189925, 283550, 379850, 402641, 805282, 2013205, 4026410, 10066025, 20132050]

約数ペア:

[(1, 20132050), (2, 10066025), (5, 4026410), (10, 2013205), (25, 805282), (50, 402641), (53, 379850), (71, 283550), (106, 189925), (107, 188150), (142, 141775), (214, 94075), (265, 75970), (355, 56710), (530, 37985), (535, 37630), (710, 28355), (1070, 18815), (1325, 15194), (1775, 11342), (2650, 7597), (2675, 7526), (3550, 5671), (3763, 5350)]