68772020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2549}}^1$

素因数の和:2648

約数の個数: 48

約数和(自身を含む): 154224000

約数和(自身を除く): 85451980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 710, 1349, 1420, 2549, 2698, 5098, 5396, 6745, 10196, 12745, 13490, 25490, 26980, 48431, 50980, 96862, 180979, 193724, 242155, 361958, 484310, 723916, 904895, 968620, 1809790, 3438601, 3619580, 6877202, 13754404, 17193005, 34386010, 68772020]

約数ペア:

[(1, 68772020), (2, 34386010), (4, 17193005), (5, 13754404), (10, 6877202), (19, 3619580), (20, 3438601), (38, 1809790), (71, 968620), (76, 904895), (95, 723916), (142, 484310), (190, 361958), (284, 242155), (355, 193724), (380, 180979), (710, 96862), (1349, 50980), (1420, 48431), (2549, 26980), (2698, 25490), (5098, 13490), (5396, 12745), (6745, 10196)]