31343920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1213}}^1$

素因数の和:1262

約数の個数: 80

約数和(自身を含む): 81289440

約数和(自身を除く): 49945520

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 272, 304, 323, 340, 380, 646, 680, 760, 1213, 1292, 1360, 1520, 1615, 2426, 2584, 3230, 4852, 5168, 6065, 6460, 9704, 12130, 12920, 19408, 20621, 23047, 24260, 25840, 41242, 46094, 48520, 82484, 92188, 97040, 103105, 115235, 164968, 184376, 206210, 230470, 329936, 368752, 391799, 412420, 460940, 783598, 824840, 921880, 1567196, 1649680, 1843760, 1958995, 3134392, 3917990, 6268784, 7835980, 15671960, 31343920]

約数ペア:

[(1, 31343920), (2, 15671960), (4, 7835980), (5, 6268784), (8, 3917990), (10, 3134392), (16, 1958995), (17, 1843760), (19, 1649680), (20, 1567196), (34, 921880), (38, 824840), (40, 783598), (68, 460940), (76, 412420), (80, 391799), (85, 368752), (95, 329936), (136, 230470), (152, 206210), (170, 184376), (190, 164968), (272, 115235), (304, 103105), (323, 97040), (340, 92188), (380, 82484), (646, 48520), (680, 46094), (760, 41242), (1213, 25840), (1292, 24260), (1360, 23047), (1520, 20621), (1615, 19408), (2426, 12920), (2584, 12130), (3230, 9704), (4852, 6460), (5168, 6065)]