39717820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^2$

素因数の和:163

約数の個数: 72

約数和(自身を含む): 91002240

約数和(自身を除く): 51284420

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 47, 58, 62, 94, 116, 124, 145, 155, 188, 235, 290, 310, 470, 580, 620, 899, 940, 1363, 1457, 1798, 2209, 2726, 2914, 3596, 4418, 4495, 5452, 5828, 6815, 7285, 8836, 8990, 11045, 13630, 14570, 17980, 22090, 27260, 29140, 42253, 44180, 64061, 68479, 84506, 128122, 136958, 169012, 211265, 256244, 273916, 320305, 342395, 422530, 640610, 684790, 845060, 1281220, 1369580, 1985891, 3971782, 7943564, 9929455, 19858910, 39717820]

約数ペア:

[(1, 39717820), (2, 19858910), (4, 9929455), (5, 7943564), (10, 3971782), (20, 1985891), (29, 1369580), (31, 1281220), (47, 845060), (58, 684790), (62, 640610), (94, 422530), (116, 342395), (124, 320305), (145, 273916), (155, 256244), (188, 211265), (235, 169012), (290, 136958), (310, 128122), (470, 84506), (580, 68479), (620, 64061), (899, 44180), (940, 42253), (1363, 29140), (1457, 27260), (1798, 22090), (2209, 17980), (2726, 14570), (2914, 13630), (3596, 11045), (4418, 8990), (4495, 8836), (5452, 7285), (5828, 6815)]