227293540

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{857}}^1$

素因数の和:1104

約数の個数: 48

約数和(自身を含む): 486486000

約数和(自身を除く): 259192460

約数列:

[1, 2, 4, 5, 10, 20, 89, 149, 178, 298, 356, 445, 596, 745, 857, 890, 1490, 1714, 1780, 2980, 3428, 4285, 8570, 13261, 17140, 26522, 53044, 66305, 76273, 127693, 132610, 152546, 255386, 265220, 305092, 381365, 510772, 638465, 762730, 1276930, 1525460, 2553860, 11364677, 22729354, 45458708, 56823385, 113646770, 227293540]

約数ペア:

[(1, 227293540), (2, 113646770), (4, 56823385), (5, 45458708), (10, 22729354), (20, 11364677), (89, 2553860), (149, 1525460), (178, 1276930), (298, 762730), (356, 638465), (445, 510772), (596, 381365), (745, 305092), (857, 265220), (890, 255386), (1490, 152546), (1714, 132610), (1780, 127693), (2980, 76273), (3428, 66305), (4285, 53044), (8570, 26522), (13261, 17140)]