130642180

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 278853120

約数和(自身を除く): 148210940

約数列:

[1, 2, 4, 5, 10, 20, 151, 181, 239, 302, 362, 478, 604, 724, 755, 905, 956, 1195, 1510, 1810, 2390, 3020, 3620, 4780, 27331, 36089, 43259, 54662, 72178, 86518, 109324, 136655, 144356, 173036, 180445, 216295, 273310, 360890, 432590, 546620, 721780, 865180, 6532109, 13064218, 26128436, 32660545, 65321090, 130642180]

約数ペア:

[(1, 130642180), (2, 65321090), (4, 32660545), (5, 26128436), (10, 13064218), (20, 6532109), (151, 865180), (181, 721780), (239, 546620), (302, 432590), (362, 360890), (478, 273310), (604, 216295), (724, 180445), (755, 173036), (905, 144356), (956, 136655), (1195, 109324), (1510, 86518), (1810, 72178), (2390, 54662), (3020, 43259), (3620, 36089), (4780, 27331)]