3978130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:522

約数の個数: 32

約数和(自身を含む): 7838208

約数和(自身を除く): 3860078

約数列:

[1, 2, 5, 10, 13, 26, 65, 71, 130, 142, 355, 431, 710, 862, 923, 1846, 2155, 4310, 4615, 5603, 9230, 11206, 28015, 30601, 56030, 61202, 153005, 306010, 397813, 795626, 1989065, 3978130]

約数ペア:

[(1, 3978130), (2, 1989065), (5, 795626), (10, 397813), (13, 306010), (26, 153005), (65, 61202), (71, 56030), (130, 30601), (142, 28015), (355, 11206), (431, 9230), (710, 5603), (862, 4615), (923, 4310), (1846, 2155)]