11388440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{457}}^1$

素因数の和:564

約数の個数: 64

約数和(自身を含む): 29678400

約数和(自身を除く): 18289960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 356, 445, 457, 623, 712, 890, 914, 1246, 1780, 1828, 2285, 2492, 3115, 3199, 3560, 3656, 4570, 4984, 6230, 6398, 9140, 12460, 12796, 15995, 18280, 24920, 25592, 31990, 40673, 63980, 81346, 127960, 162692, 203365, 284711, 325384, 406730, 569422, 813460, 1138844, 1423555, 1626920, 2277688, 2847110, 5694220, 11388440]

約数ペア:

[(1, 11388440), (2, 5694220), (4, 2847110), (5, 2277688), (7, 1626920), (8, 1423555), (10, 1138844), (14, 813460), (20, 569422), (28, 406730), (35, 325384), (40, 284711), (56, 203365), (70, 162692), (89, 127960), (140, 81346), (178, 63980), (280, 40673), (356, 31990), (445, 25592), (457, 24920), (623, 18280), (712, 15995), (890, 12796), (914, 12460), (1246, 9140), (1780, 6398), (1828, 6230), (2285, 4984), (2492, 4570), (3115, 3656), (3199, 3560)]