66720880

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{28759}}^1$

素因数の和:28801

約数の個数: 40

約数和(自身を含む): 160480800

約数和(自身を除く): 93759920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 28759, 57518, 115036, 143795, 230072, 287590, 460144, 575180, 834011, 1150360, 1668022, 2300720, 3336044, 4170055, 6672088, 8340110, 13344176, 16680220, 33360440, 66720880]

約数ペア:

[(1, 66720880), (2, 33360440), (4, 16680220), (5, 13344176), (8, 8340110), (10, 6672088), (16, 4170055), (20, 3336044), (29, 2300720), (40, 1668022), (58, 1150360), (80, 834011), (116, 575180), (145, 460144), (232, 287590), (290, 230072), (464, 143795), (580, 115036), (1160, 57518), (2320, 28759)]