321310040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{259121}}^1$

素因数の和:259163

約数の個数: 32

約数和(自身を含む): 746271360

約数和(自身を除く): 424961320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 259121, 518242, 1036484, 1295605, 2072968, 2591210, 5182420, 8032751, 10364840, 16065502, 32131004, 40163755, 64262008, 80327510, 160655020, 321310040]

約数ペア:

[(1, 321310040), (2, 160655020), (4, 80327510), (5, 64262008), (8, 40163755), (10, 32131004), (20, 16065502), (31, 10364840), (40, 8032751), (62, 5182420), (124, 2591210), (155, 2072968), (248, 1295605), (310, 1036484), (620, 518242), (1240, 259121)]