79807960

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{7949}}^1$

素因数の和:8211

約数の個数: 32

約数和(自身を含む): 180306000

約数和(自身を除く): 100498040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 7949, 10040, 15898, 31796, 39745, 63592, 79490, 158980, 317960, 1995199, 3990398, 7980796, 9975995, 15961592, 19951990, 39903980, 79807960]

約数ペア:

[(1, 79807960), (2, 39903980), (4, 19951990), (5, 15961592), (8, 9975995), (10, 7980796), (20, 3990398), (40, 1995199), (251, 317960), (502, 158980), (1004, 79490), (1255, 63592), (2008, 39745), (2510, 31796), (5020, 15898), (7949, 10040)]