1660789040

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{669673}}^1$

素因数の和:669717

約数の個数: 40

約数和(自身を含む): 3985899648

約数和(自身を除く): 2325110608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 669673, 1339346, 2678692, 3348365, 5357384, 6696730, 10714768, 13393460, 20759863, 26786920, 41519726, 53573840, 83039452, 103799315, 166078904, 207598630, 332157808, 415197260, 830394520, 1660789040]

約数ペア:

[(1, 1660789040), (2, 830394520), (4, 415197260), (5, 332157808), (8, 207598630), (10, 166078904), (16, 103799315), (20, 83039452), (31, 53573840), (40, 41519726), (62, 26786920), (80, 20759863), (124, 13393460), (155, 10714768), (248, 6696730), (310, 5357384), (496, 3348365), (620, 2678692), (1240, 1339346), (2480, 669673)]