135971980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{1999}}^1$

素因数の和:2206

約数の個数: 48

約数和(自身を含む): 302400000

約数和(自身を除く): 166428020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 179, 190, 358, 380, 716, 895, 1790, 1999, 3401, 3580, 3998, 6802, 7996, 9995, 13604, 17005, 19990, 34010, 37981, 39980, 68020, 75962, 151924, 189905, 357821, 379810, 715642, 759620, 1431284, 1789105, 3578210, 6798599, 7156420, 13597198, 27194396, 33992995, 67985990, 135971980]

約数ペア:

[(1, 135971980), (2, 67985990), (4, 33992995), (5, 27194396), (10, 13597198), (19, 7156420), (20, 6798599), (38, 3578210), (76, 1789105), (95, 1431284), (179, 759620), (190, 715642), (358, 379810), (380, 357821), (716, 189905), (895, 151924), (1790, 75962), (1999, 68020), (3401, 39980), (3580, 37981), (3998, 34010), (6802, 19990), (7996, 17005), (9995, 13604)]