20672808

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{383}}^1$

素因数の和:578

約数の個数: 64

約数和(自身を含む): 56125440

約数和(自身を除く): 35452632

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 173, 312, 346, 383, 519, 692, 766, 1038, 1149, 1384, 1532, 2076, 2249, 2298, 3064, 4152, 4498, 4596, 4979, 6747, 8996, 9192, 9958, 13494, 14937, 17992, 19916, 26988, 29874, 39832, 53976, 59748, 66259, 119496, 132518, 198777, 265036, 397554, 530072, 795108, 861367, 1590216, 1722734, 2584101, 3445468, 5168202, 6890936, 10336404, 20672808]

約数ペア:

[(1, 20672808), (2, 10336404), (3, 6890936), (4, 5168202), (6, 3445468), (8, 2584101), (12, 1722734), (13, 1590216), (24, 861367), (26, 795108), (39, 530072), (52, 397554), (78, 265036), (104, 198777), (156, 132518), (173, 119496), (312, 66259), (346, 59748), (383, 53976), (519, 39832), (692, 29874), (766, 26988), (1038, 19916), (1149, 17992), (1384, 14937), (1532, 13494), (2076, 9958), (2249, 9192), (2298, 8996), (3064, 6747), (4152, 4979), (4498, 4596)]