64811390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{29867}}^1$

素因数の和:29912

約数の個数: 32

約数和(自身を含む): 137631744

約数和(自身を除く): 72820354

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 29867, 59734, 149335, 209069, 298670, 418138, 925877, 1045345, 1851754, 2090690, 4629385, 6481139, 9258770, 12962278, 32405695, 64811390]

約数ペア:

[(1, 64811390), (2, 32405695), (5, 12962278), (7, 9258770), (10, 6481139), (14, 4629385), (31, 2090690), (35, 1851754), (62, 1045345), (70, 925877), (155, 418138), (217, 298670), (310, 209069), (434, 149335), (1085, 59734), (2170, 29867)]