12697040

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3691}}^1$

素因数の和:3747

約数の個数: 40

約数和(自身を含む): 30215328

約数和(自身を除く): 17518288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 3691, 7382, 14764, 18455, 29528, 36910, 59056, 73820, 147640, 158713, 295280, 317426, 634852, 793565, 1269704, 1587130, 2539408, 3174260, 6348520, 12697040]

約数ペア:

[(1, 12697040), (2, 6348520), (4, 3174260), (5, 2539408), (8, 1587130), (10, 1269704), (16, 793565), (20, 634852), (40, 317426), (43, 295280), (80, 158713), (86, 147640), (172, 73820), (215, 59056), (344, 36910), (430, 29528), (688, 18455), (860, 14764), (1720, 7382), (3440, 3691)]