131583220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{2557}}^1$

素因数の和:2680

約数の個数: 48

約数和(自身を含む): 288787968

約数和(自身を除く): 157204748

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 83, 124, 155, 166, 310, 332, 415, 620, 830, 1660, 2557, 2573, 5114, 5146, 10228, 10292, 12785, 12865, 25570, 25730, 51140, 51460, 79267, 158534, 212231, 317068, 396335, 424462, 792670, 848924, 1061155, 1585340, 2122310, 4244620, 6579161, 13158322, 26316644, 32895805, 65791610, 131583220]

約数ペア:

[(1, 131583220), (2, 65791610), (4, 32895805), (5, 26316644), (10, 13158322), (20, 6579161), (31, 4244620), (62, 2122310), (83, 1585340), (124, 1061155), (155, 848924), (166, 792670), (310, 424462), (332, 396335), (415, 317068), (620, 212231), (830, 158534), (1660, 79267), (2557, 51460), (2573, 51140), (5114, 25730), (5146, 25570), (10228, 12865), (10292, 12785)]