64428640

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23687}}^1$

素因数の和:23719

約数の個数: 48

約数和(自身を含む): 161173152

約数和(自身を除く): 96744512

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 23687, 47374, 94748, 118435, 189496, 236870, 378992, 402679, 473740, 757984, 805358, 947480, 1610716, 1894960, 2013395, 3221432, 3789920, 4026790, 6442864, 8053580, 12885728, 16107160, 32214320, 64428640]

約数ペア:

[(1, 64428640), (2, 32214320), (4, 16107160), (5, 12885728), (8, 8053580), (10, 6442864), (16, 4026790), (17, 3789920), (20, 3221432), (32, 2013395), (34, 1894960), (40, 1610716), (68, 947480), (80, 805358), (85, 757984), (136, 473740), (160, 402679), (170, 378992), (272, 236870), (340, 189496), (544, 118435), (680, 94748), (1360, 47374), (2720, 23687)]