13389520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5399}}^1$

素因数の和:5443

約数の個数: 40

約数和(自身を含む): 32140800

約数和(自身を除く): 18751280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 5399, 10798, 21596, 26995, 43192, 53990, 86384, 107980, 167369, 215960, 334738, 431920, 669476, 836845, 1338952, 1673690, 2677904, 3347380, 6694760, 13389520]

約数ペア:

[(1, 13389520), (2, 6694760), (4, 3347380), (5, 2677904), (8, 1673690), (10, 1338952), (16, 836845), (20, 669476), (31, 431920), (40, 334738), (62, 215960), (80, 167369), (124, 107980), (155, 86384), (248, 53990), (310, 43192), (496, 26995), (620, 21596), (1240, 10798), (2480, 5399)]