64632640

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^2$

素因数の和:252

約数の個数: 84

約数和(自身を含む): 164468556

約数和(自身を除く): 99835916

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 109, 136, 160, 170, 218, 272, 320, 340, 436, 544, 545, 680, 872, 1088, 1090, 1360, 1744, 1853, 2180, 2720, 3488, 3706, 4360, 5440, 6976, 7412, 8720, 9265, 11881, 14824, 17440, 18530, 23762, 29648, 34880, 37060, 47524, 59296, 59405, 74120, 95048, 118592, 118810, 148240, 190096, 201977, 237620, 296480, 380192, 403954, 475240, 592960, 760384, 807908, 950480, 1009885, 1615816, 1900960, 2019770, 3231632, 3801920, 4039540, 6463264, 8079080, 12926528, 16158160, 32316320, 64632640]

約数ペア:

[(1, 64632640), (2, 32316320), (4, 16158160), (5, 12926528), (8, 8079080), (10, 6463264), (16, 4039540), (17, 3801920), (20, 3231632), (32, 2019770), (34, 1900960), (40, 1615816), (64, 1009885), (68, 950480), (80, 807908), (85, 760384), (109, 592960), (136, 475240), (160, 403954), (170, 380192), (218, 296480), (272, 237620), (320, 201977), (340, 190096), (436, 148240), (544, 118810), (545, 118592), (680, 95048), (872, 74120), (1088, 59405), (1090, 59296), (1360, 47524), (1744, 37060), (1853, 34880), (2180, 29648), (2720, 23762), (3488, 18530), (3706, 17440), (4360, 14824), (5440, 11881), (6976, 9265), (7412, 8720)]