131530280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{4651}}^1$

素因数の和:4770

約数の個数: 64

約数和(自身を含む): 341642880

約数和(自身を除く): 210112600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 101, 140, 202, 280, 404, 505, 707, 808, 1010, 1414, 2020, 2828, 3535, 4040, 4651, 5656, 7070, 9302, 14140, 18604, 23255, 28280, 32557, 37208, 46510, 65114, 93020, 130228, 162785, 186040, 260456, 325570, 469751, 651140, 939502, 1302280, 1879004, 2348755, 3288257, 3758008, 4697510, 6576514, 9395020, 13153028, 16441285, 18790040, 26306056, 32882570, 65765140, 131530280]

約数ペア:

[(1, 131530280), (2, 65765140), (4, 32882570), (5, 26306056), (7, 18790040), (8, 16441285), (10, 13153028), (14, 9395020), (20, 6576514), (28, 4697510), (35, 3758008), (40, 3288257), (56, 2348755), (70, 1879004), (101, 1302280), (140, 939502), (202, 651140), (280, 469751), (404, 325570), (505, 260456), (707, 186040), (808, 162785), (1010, 130228), (1414, 93020), (2020, 65114), (2828, 46510), (3535, 37208), (4040, 32557), (4651, 28280), (5656, 23255), (7070, 18604), (9302, 14140)]