64031960

素因数分解:

$2^3\times 5^1\times {\mathrm{829}}^1\times {\mathrm{1931}}^1$

素因数の和:2771

約数の個数: 32

約数和(自身を含む): 144320400

約数和(自身を除く): 80288440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 829, 1658, 1931, 3316, 3862, 4145, 6632, 7724, 8290, 9655, 15448, 16580, 19310, 33160, 38620, 77240, 1600799, 3201598, 6403196, 8003995, 12806392, 16007990, 32015980, 64031960]

約数ペア:

[(1, 64031960), (2, 32015980), (4, 16007990), (5, 12806392), (8, 8003995), (10, 6403196), (20, 3201598), (40, 1600799), (829, 77240), (1658, 38620), (1931, 33160), (3316, 19310), (3862, 16580), (4145, 15448), (6632, 9655), (7724, 8290)]