20658720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{193}}^1\times {\mathrm{223}}^1$

素因数の和:434

約数の個数: 96

約数和(自身を含む): 65705472

約数和(自身を除く): 45046752

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 193, 223, 240, 386, 446, 480, 579, 669, 772, 892, 965, 1115, 1158, 1338, 1544, 1784, 1930, 2230, 2316, 2676, 2895, 3088, 3345, 3568, 3860, 4460, 4632, 5352, 5790, 6176, 6690, 7136, 7720, 8920, 9264, 10704, 11580, 13380, 15440, 17840, 18528, 21408, 23160, 26760, 30880, 35680, 43039, 46320, 53520, 86078, 92640, 107040, 129117, 172156, 215195, 258234, 344312, 430390, 516468, 645585, 688624, 860780, 1032936, 1291170, 1377248, 1721560, 2065872, 2582340, 3443120, 4131744, 5164680, 6886240, 10329360, 20658720]

約数ペア:

[(1, 20658720), (2, 10329360), (3, 6886240), (4, 5164680), (5, 4131744), (6, 3443120), (8, 2582340), (10, 2065872), (12, 1721560), (15, 1377248), (16, 1291170), (20, 1032936), (24, 860780), (30, 688624), (32, 645585), (40, 516468), (48, 430390), (60, 344312), (80, 258234), (96, 215195), (120, 172156), (160, 129117), (193, 107040), (223, 92640), (240, 86078), (386, 53520), (446, 46320), (480, 43039), (579, 35680), (669, 30880), (772, 26760), (892, 23160), (965, 21408), (1115, 18528), (1158, 17840), (1338, 15440), (1544, 13380), (1784, 11580), (1930, 10704), (2230, 9264), (2316, 8920), (2676, 7720), (2895, 7136), (3088, 6690), (3345, 6176), (3568, 5790), (3860, 5352), (4460, 4632)]