77217920

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9281}}^1$

素因数の和:9313

約数の個数: 64

約数和(自身を含む): 198820440

約数和(自身を除く): 121602520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 9281, 18562, 37124, 46405, 74248, 92810, 120653, 148496, 185620, 241306, 296992, 371240, 482612, 593984, 603265, 742480, 965224, 1187968, 1206530, 1484960, 1930448, 2413060, 2969920, 3860896, 4826120, 5939840, 7721792, 9652240, 15443584, 19304480, 38608960, 77217920]

約数ペア:

[(1, 77217920), (2, 38608960), (4, 19304480), (5, 15443584), (8, 9652240), (10, 7721792), (13, 5939840), (16, 4826120), (20, 3860896), (26, 2969920), (32, 2413060), (40, 1930448), (52, 1484960), (64, 1206530), (65, 1187968), (80, 965224), (104, 742480), (128, 603265), (130, 593984), (160, 482612), (208, 371240), (260, 296992), (320, 241306), (416, 185620), (520, 148496), (640, 120653), (832, 92810), (1040, 74248), (1664, 46405), (2080, 37124), (4160, 18562), (8320, 9281)]