28831240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{23251}}^1$

素因数の和:23293

約数の個数: 32

約数和(自身を含む): 66965760

約数和(自身を除く): 38134520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 23251, 46502, 93004, 116255, 186008, 232510, 465020, 720781, 930040, 1441562, 2883124, 3603905, 5766248, 7207810, 14415620, 28831240]

約数ペア:

[(1, 28831240), (2, 14415620), (4, 7207810), (5, 5766248), (8, 3603905), (10, 2883124), (20, 1441562), (31, 930040), (40, 720781), (62, 465020), (124, 232510), (155, 186008), (248, 116255), (310, 93004), (620, 46502), (1240, 23251)]