31018880

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2851}}^1$

素因数の和:2887

約数の個数: 64

約数和(自身を含む): 78544080

約数和(自身を除く): 47525200

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1360, 2176, 2720, 2851, 5440, 5702, 10880, 11404, 14255, 22808, 28510, 45616, 48467, 57020, 91232, 96934, 114040, 182464, 193868, 228080, 242335, 364928, 387736, 456160, 484670, 775472, 912320, 969340, 1550944, 1824640, 1938680, 3101888, 3877360, 6203776, 7754720, 15509440, 31018880]

約数ペア:

[(1, 31018880), (2, 15509440), (4, 7754720), (5, 6203776), (8, 3877360), (10, 3101888), (16, 1938680), (17, 1824640), (20, 1550944), (32, 969340), (34, 912320), (40, 775472), (64, 484670), (68, 456160), (80, 387736), (85, 364928), (128, 242335), (136, 228080), (160, 193868), (170, 182464), (272, 114040), (320, 96934), (340, 91232), (544, 57020), (640, 48467), (680, 45616), (1088, 28510), (1360, 22808), (2176, 14255), (2720, 11404), (2851, 10880), (5440, 5702)]