390204320

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{221707}}^1$

素因数の和:221733

約数の個数: 48

約数和(自身を含む): 1005667488

約数和(自身を除く): 615463168

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 221707, 443414, 886828, 1108535, 1773656, 2217070, 2438777, 3547312, 4434140, 4877554, 7094624, 8868280, 9755108, 12193885, 17736560, 19510216, 24387770, 35473120, 39020432, 48775540, 78040864, 97551080, 195102160, 390204320]

約数ペア:

[(1, 390204320), (2, 195102160), (4, 97551080), (5, 78040864), (8, 48775540), (10, 39020432), (11, 35473120), (16, 24387770), (20, 19510216), (22, 17736560), (32, 12193885), (40, 9755108), (44, 8868280), (55, 7094624), (80, 4877554), (88, 4434140), (110, 3547312), (160, 2438777), (176, 2217070), (220, 1773656), (352, 1108535), (440, 886828), (880, 443414), (1760, 221707)]