129603920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{409}}^1$

素因数の和:672

約数の個数: 80

約数和(自身を含む): 321207120

約数和(自身を除く): 191603200

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 233, 272, 340, 409, 466, 680, 818, 932, 1165, 1360, 1636, 1864, 2045, 2330, 3272, 3728, 3961, 4090, 4660, 6544, 6953, 7922, 8180, 9320, 13906, 15844, 16360, 18640, 19805, 27812, 31688, 32720, 34765, 39610, 55624, 63376, 69530, 79220, 95297, 111248, 139060, 158440, 190594, 278120, 316880, 381188, 476485, 556240, 762376, 952970, 1524752, 1620049, 1905940, 3240098, 3811880, 6480196, 7623760, 8100245, 12960392, 16200490, 25920784, 32400980, 64801960, 129603920]

約数ペア:

[(1, 129603920), (2, 64801960), (4, 32400980), (5, 25920784), (8, 16200490), (10, 12960392), (16, 8100245), (17, 7623760), (20, 6480196), (34, 3811880), (40, 3240098), (68, 1905940), (80, 1620049), (85, 1524752), (136, 952970), (170, 762376), (233, 556240), (272, 476485), (340, 381188), (409, 316880), (466, 278120), (680, 190594), (818, 158440), (932, 139060), (1165, 111248), (1360, 95297), (1636, 79220), (1864, 69530), (2045, 63376), (2330, 55624), (3272, 39610), (3728, 34765), (3961, 32720), (4090, 31688), (4660, 27812), (6544, 19805), (6953, 18640), (7922, 16360), (8180, 15844), (9320, 13906)]