8681240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7001}}^1$

素因数の和:7043

約数の個数: 32

約数和(自身を含む): 20165760

約数和(自身を除く): 11484520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 7001, 14002, 28004, 35005, 56008, 70010, 140020, 217031, 280040, 434062, 868124, 1085155, 1736248, 2170310, 4340620, 8681240]

約数ペア:

[(1, 8681240), (2, 4340620), (4, 2170310), (5, 1736248), (8, 1085155), (10, 868124), (20, 434062), (31, 280040), (40, 217031), (62, 140020), (124, 70010), (155, 56008), (248, 35005), (310, 28004), (620, 14002), (1240, 7001)]