31940020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{7867}}^1$

素因数の和:7912

約数の個数: 48

約数和(自身を含む): 79309440

約数和(自身を除く): 47369420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 7867, 15734, 31468, 39335, 55069, 78670, 110138, 157340, 220276, 228143, 275345, 456286, 550690, 912572, 1101380, 1140715, 1597001, 2281430, 3194002, 4562860, 6388004, 7985005, 15970010, 31940020]

約数ペア:

[(1, 31940020), (2, 15970010), (4, 7985005), (5, 6388004), (7, 4562860), (10, 3194002), (14, 2281430), (20, 1597001), (28, 1140715), (29, 1101380), (35, 912572), (58, 550690), (70, 456286), (116, 275345), (140, 228143), (145, 220276), (203, 157340), (290, 110138), (406, 78670), (580, 55069), (812, 39335), (1015, 31468), (2030, 15734), (4060, 7867)]