20619110

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:448

約数の個数: 32

約数和(自身を含む): 38117952

約数和(自身を除く): 17498842

約数列:

[1, 2, 5, 10, 71, 113, 142, 226, 257, 355, 514, 565, 710, 1130, 1285, 2570, 8023, 16046, 18247, 29041, 36494, 40115, 58082, 80230, 91235, 145205, 182470, 290410, 2061911, 4123822, 10309555, 20619110]

約数ペア:

[(1, 20619110), (2, 10309555), (5, 4123822), (10, 2061911), (71, 290410), (113, 182470), (142, 145205), (226, 91235), (257, 80230), (355, 58082), (514, 40115), (565, 36494), (710, 29041), (1130, 18247), (1285, 16046), (2570, 8023)]