31719280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{281}}^1$

素因数の和:394

約数の個数: 80

約数和(自身を含む): 79307424

約数和(自身を除く): 47588144

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 83, 85, 136, 166, 170, 272, 281, 332, 340, 415, 562, 664, 680, 830, 1124, 1328, 1360, 1405, 1411, 1660, 2248, 2810, 2822, 3320, 4496, 4777, 5620, 5644, 6640, 7055, 9554, 11240, 11288, 14110, 19108, 22480, 22576, 23323, 23885, 28220, 38216, 46646, 47770, 56440, 76432, 93292, 95540, 112880, 116615, 186584, 191080, 233230, 373168, 382160, 396491, 466460, 792982, 932920, 1585964, 1865840, 1982455, 3171928, 3964910, 6343856, 7929820, 15859640, 31719280]

約数ペア:

[(1, 31719280), (2, 15859640), (4, 7929820), (5, 6343856), (8, 3964910), (10, 3171928), (16, 1982455), (17, 1865840), (20, 1585964), (34, 932920), (40, 792982), (68, 466460), (80, 396491), (83, 382160), (85, 373168), (136, 233230), (166, 191080), (170, 186584), (272, 116615), (281, 112880), (332, 95540), (340, 93292), (415, 76432), (562, 56440), (664, 47770), (680, 46646), (830, 38216), (1124, 28220), (1328, 23885), (1360, 23323), (1405, 22576), (1411, 22480), (1660, 19108), (2248, 14110), (2810, 11288), (2822, 11240), (3320, 9554), (4496, 7055), (4777, 6640), (5620, 5644)]