80500020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{18379}}^1$

素因数の和:18464

約数の個数: 48

約数和(自身を含む): 228500160

約数和(自身を除く): 148000140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 73, 146, 219, 292, 365, 438, 730, 876, 1095, 1460, 2190, 4380, 18379, 36758, 55137, 73516, 91895, 110274, 183790, 220548, 275685, 367580, 551370, 1102740, 1341667, 2683334, 4025001, 5366668, 6708335, 8050002, 13416670, 16100004, 20125005, 26833340, 40250010, 80500020]

約数ペア:

[(1, 80500020), (2, 40250010), (3, 26833340), (4, 20125005), (5, 16100004), (6, 13416670), (10, 8050002), (12, 6708335), (15, 5366668), (20, 4025001), (30, 2683334), (60, 1341667), (73, 1102740), (146, 551370), (219, 367580), (292, 275685), (365, 220548), (438, 183790), (730, 110274), (876, 91895), (1095, 73516), (1460, 55137), (2190, 36758), (4380, 18379)]