299960180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{18913}}^1$

素因数の和:18996

約数の個数: 48

約数和(自身を含む): 689528784

約数和(自身を除く): 389568604

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3965, 7930, 15860, 18913, 37826, 75652, 94565, 189130, 245869, 378260, 491738, 983476, 1153693, 1229345, 2307386, 2458690, 4614772, 4917380, 5768465, 11536930, 14998009, 23073860, 29996018, 59992036, 74990045, 149980090, 299960180]

約数ペア:

[(1, 299960180), (2, 149980090), (4, 74990045), (5, 59992036), (10, 29996018), (13, 23073860), (20, 14998009), (26, 11536930), (52, 5768465), (61, 4917380), (65, 4614772), (122, 2458690), (130, 2307386), (244, 1229345), (260, 1153693), (305, 983476), (610, 491738), (793, 378260), (1220, 245869), (1586, 189130), (3172, 94565), (3965, 75652), (7930, 37826), (15860, 18913)]