67641380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1381}}^1$

素因数の和:1500

約数の個数: 48

約数和(自身を含む): 148592640

約数和(自身を除く): 80951260

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 124, 155, 158, 310, 316, 395, 620, 790, 1381, 1580, 2449, 2762, 4898, 5524, 6905, 9796, 12245, 13810, 24490, 27620, 42811, 48980, 85622, 109099, 171244, 214055, 218198, 428110, 436396, 545495, 856220, 1090990, 2181980, 3382069, 6764138, 13528276, 16910345, 33820690, 67641380]

約数ペア:

[(1, 67641380), (2, 33820690), (4, 16910345), (5, 13528276), (10, 6764138), (20, 3382069), (31, 2181980), (62, 1090990), (79, 856220), (124, 545495), (155, 436396), (158, 428110), (310, 218198), (316, 214055), (395, 171244), (620, 109099), (790, 85622), (1381, 48980), (1580, 42811), (2449, 27620), (2762, 24490), (4898, 13810), (5524, 12245), (6905, 9796)]