220878008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{461}}^1$

素因数の和:768

約数の個数: 64

約数和(自身を含む): 475009920

約数和(自身を除く): 254131912

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 271, 442, 461, 542, 884, 922, 1084, 1768, 1844, 2168, 3523, 3688, 4607, 5993, 7046, 7837, 9214, 11986, 14092, 15674, 18428, 23972, 28184, 31348, 36856, 47944, 59891, 62696, 101881, 119782, 124931, 203762, 239564, 249862, 407524, 479128, 499724, 815048, 999448, 1624103, 2123827, 3248206, 4247654, 6496412, 8495308, 12992824, 16990616, 27609751, 55219502, 110439004, 220878008]

約数ペア:

[(1, 220878008), (2, 110439004), (4, 55219502), (8, 27609751), (13, 16990616), (17, 12992824), (26, 8495308), (34, 6496412), (52, 4247654), (68, 3248206), (104, 2123827), (136, 1624103), (221, 999448), (271, 815048), (442, 499724), (461, 479128), (542, 407524), (884, 249862), (922, 239564), (1084, 203762), (1768, 124931), (1844, 119782), (2168, 101881), (3523, 62696), (3688, 59891), (4607, 47944), (5993, 36856), (7046, 31348), (7837, 28184), (9214, 23972), (11986, 18428), (14092, 15674)]