31981794

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{271}}^1$

素因数の和:395

約数の個数: 64

約数和(自身を含む): 74027520

約数和(自身を除く): 42045726

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 89, 102, 178, 221, 267, 271, 442, 534, 542, 663, 813, 1157, 1326, 1513, 1626, 2314, 3026, 3471, 3523, 4539, 4607, 6942, 7046, 9078, 9214, 10569, 13821, 19669, 21138, 24119, 27642, 39338, 48238, 59007, 59891, 72357, 118014, 119782, 144714, 179673, 313547, 359346, 410023, 627094, 820046, 940641, 1230069, 1881282, 2460138, 5330299, 10660598, 15990897, 31981794]

約数ペア:

[(1, 31981794), (2, 15990897), (3, 10660598), (6, 5330299), (13, 2460138), (17, 1881282), (26, 1230069), (34, 940641), (39, 820046), (51, 627094), (78, 410023), (89, 359346), (102, 313547), (178, 179673), (221, 144714), (267, 119782), (271, 118014), (442, 72357), (534, 59891), (542, 59007), (663, 48238), (813, 39338), (1157, 27642), (1326, 24119), (1513, 21138), (1626, 19669), (2314, 13821), (3026, 10569), (3471, 9214), (3523, 9078), (4539, 7046), (4607, 6942)]