20880408

素因数分解:

$2^3\times 3^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{173}}^1$

素因数の和:336

約数の個数: 64

約数和(自身を含む): 54120960

約数和(自身を除く): 33240552

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 47, 94, 107, 141, 173, 188, 214, 282, 321, 346, 376, 428, 519, 564, 642, 692, 856, 1038, 1128, 1284, 1384, 2076, 2568, 4152, 5029, 8131, 10058, 15087, 16262, 18511, 20116, 24393, 30174, 32524, 37022, 40232, 48786, 55533, 60348, 65048, 74044, 97572, 111066, 120696, 148088, 195144, 222132, 444264, 870017, 1740034, 2610051, 3480068, 5220102, 6960136, 10440204, 20880408]

約数ペア:

[(1, 20880408), (2, 10440204), (3, 6960136), (4, 5220102), (6, 3480068), (8, 2610051), (12, 1740034), (24, 870017), (47, 444264), (94, 222132), (107, 195144), (141, 148088), (173, 120696), (188, 111066), (214, 97572), (282, 74044), (321, 65048), (346, 60348), (376, 55533), (428, 48786), (519, 40232), (564, 37022), (642, 32524), (692, 30174), (856, 24393), (1038, 20116), (1128, 18511), (1284, 16262), (1384, 15087), (2076, 10058), (2568, 8131), (4152, 5029)]