31211870

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2693}}^1$

素因数の和:2780

約数の個数: 32

約数和(自身を含む): 60130080

約数和(自身を除く): 28918210

約数列:

[1, 2, 5, 10, 19, 38, 61, 95, 122, 190, 305, 610, 1159, 2318, 2693, 5386, 5795, 11590, 13465, 26930, 51167, 102334, 164273, 255835, 328546, 511670, 821365, 1642730, 3121187, 6242374, 15605935, 31211870]

約数ペア:

[(1, 31211870), (2, 15605935), (5, 6242374), (10, 3121187), (19, 1642730), (38, 821365), (61, 511670), (95, 328546), (122, 255835), (190, 164273), (305, 102334), (610, 51167), (1159, 26930), (2318, 13465), (2693, 11590), (5386, 5795)]