81474360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61723}}^1$

素因数の和:61748

約数の個数: 64

約数和(自身を含む): 266647680

約数和(自身を除く): 185173320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 61723, 123446, 185169, 246892, 308615, 370338, 493784, 617230, 678953, 740676, 925845, 1234460, 1357906, 1481352, 1851690, 2036859, 2468920, 2715812, 3394765, 3703380, 4073718, 5431624, 6789530, 7406760, 8147436, 10184295, 13579060, 16294872, 20368590, 27158120, 40737180, 81474360]

約数ペア:

[(1, 81474360), (2, 40737180), (3, 27158120), (4, 20368590), (5, 16294872), (6, 13579060), (8, 10184295), (10, 8147436), (11, 7406760), (12, 6789530), (15, 5431624), (20, 4073718), (22, 3703380), (24, 3394765), (30, 2715812), (33, 2468920), (40, 2036859), (44, 1851690), (55, 1481352), (60, 1357906), (66, 1234460), (88, 925845), (110, 740676), (120, 678953), (132, 617230), (165, 493784), (220, 370338), (264, 308615), (330, 246892), (440, 185169), (660, 123446), (1320, 61723)]