31399340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:279

約数の個数: 96

約数和(自身を含む): 81285120

約数和(自身を除く): 49885780

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 79, 85, 119, 140, 158, 167, 170, 238, 316, 334, 340, 395, 476, 553, 595, 668, 790, 835, 1106, 1169, 1190, 1343, 1580, 1670, 2212, 2338, 2380, 2686, 2765, 2839, 3340, 4676, 5372, 5530, 5678, 5845, 6715, 9401, 11060, 11356, 11690, 13193, 13430, 14195, 18802, 19873, 23380, 26386, 26860, 28390, 37604, 39746, 47005, 52772, 56780, 65965, 79492, 92351, 94010, 99365, 131930, 184702, 188020, 198730, 224281, 263860, 369404, 397460, 448562, 461755, 897124, 923510, 1121405, 1569967, 1847020, 2242810, 3139934, 4485620, 6279868, 7849835, 15699670, 31399340]

約数ペア:

[(1, 31399340), (2, 15699670), (4, 7849835), (5, 6279868), (7, 4485620), (10, 3139934), (14, 2242810), (17, 1847020), (20, 1569967), (28, 1121405), (34, 923510), (35, 897124), (68, 461755), (70, 448562), (79, 397460), (85, 369404), (119, 263860), (140, 224281), (158, 198730), (167, 188020), (170, 184702), (238, 131930), (316, 99365), (334, 94010), (340, 92351), (395, 79492), (476, 65965), (553, 56780), (595, 52772), (668, 47005), (790, 39746), (835, 37604), (1106, 28390), (1169, 26860), (1190, 26386), (1343, 23380), (1580, 19873), (1670, 18802), (2212, 14195), (2338, 13430), (2380, 13193), (2686, 11690), (2765, 11356), (2839, 11060), (3340, 9401), (4676, 6715), (5372, 5845), (5530, 5678)]