31639725

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{373}}^1$

素因数の和:431

約数の個数: 72

約数和(自身を含む): 63303240

約数和(自身を除く): 31663515

約数列:

[1, 3, 5, 9, 13, 15, 25, 29, 39, 45, 65, 75, 87, 117, 145, 195, 225, 261, 325, 373, 377, 435, 585, 725, 975, 1119, 1131, 1305, 1865, 1885, 2175, 2925, 3357, 3393, 4849, 5595, 5655, 6525, 9325, 9425, 10817, 14547, 16785, 16965, 24245, 27975, 28275, 32451, 43641, 54085, 72735, 83925, 84825, 97353, 121225, 140621, 162255, 218205, 270425, 363675, 421863, 486765, 703105, 811275, 1091025, 1265589, 2109315, 2433825, 3515525, 6327945, 10546575, 31639725]

約数ペア:

[(1, 31639725), (3, 10546575), (5, 6327945), (9, 3515525), (13, 2433825), (15, 2109315), (25, 1265589), (29, 1091025), (39, 811275), (45, 703105), (65, 486765), (75, 421863), (87, 363675), (117, 270425), (145, 218205), (195, 162255), (225, 140621), (261, 121225), (325, 97353), (373, 84825), (377, 83925), (435, 72735), (585, 54085), (725, 43641), (975, 32451), (1119, 28275), (1131, 27975), (1305, 24245), (1865, 16965), (1885, 16785), (2175, 14547), (2925, 10817), (3357, 9425), (3393, 9325), (4849, 6525), (5595, 5655)]