31399125

素因数分解:

$3^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:159

約数の個数: 64

約数和(自身を含む): 56150016

約数和(自身を除く): 24750891

約数列:

[1, 3, 5, 15, 25, 31, 37, 73, 75, 93, 111, 125, 155, 185, 219, 365, 375, 465, 555, 775, 925, 1095, 1147, 1825, 2263, 2325, 2701, 2775, 3441, 3875, 4625, 5475, 5735, 6789, 8103, 9125, 11315, 11625, 13505, 13875, 17205, 27375, 28675, 33945, 40515, 56575, 67525, 83731, 86025, 143375, 169725, 202575, 251193, 282875, 337625, 418655, 430125, 848625, 1012875, 1255965, 2093275, 6279825, 10466375, 31399125]

約数ペア:

[(1, 31399125), (3, 10466375), (5, 6279825), (15, 2093275), (25, 1255965), (31, 1012875), (37, 848625), (73, 430125), (75, 418655), (93, 337625), (111, 282875), (125, 251193), (155, 202575), (185, 169725), (219, 143375), (365, 86025), (375, 83731), (465, 67525), (555, 56575), (775, 40515), (925, 33945), (1095, 28675), (1147, 27375), (1825, 17205), (2263, 13875), (2325, 13505), (2701, 11625), (2775, 11315), (3441, 9125), (3875, 8103), (4625, 6789), (5475, 5735)]