13555120

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9967}}^1$

素因数の和:9997

約数の個数: 40

約数和(自身を含む): 33372864

約数和(自身を除く): 19817744

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 9967, 19934, 39868, 49835, 79736, 99670, 159472, 169439, 199340, 338878, 398680, 677756, 797360, 847195, 1355512, 1694390, 2711024, 3388780, 6777560, 13555120]

約数ペア:

[(1, 13555120), (2, 6777560), (4, 3388780), (5, 2711024), (8, 1694390), (10, 1355512), (16, 847195), (17, 797360), (20, 677756), (34, 398680), (40, 338878), (68, 199340), (80, 169439), (85, 159472), (136, 99670), (170, 79736), (272, 49835), (340, 39868), (680, 19934), (1360, 9967)]