39998680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32257}}^1$

素因数の和:32299

約数の個数: 32

約数和(自身を含む): 92903040

約数和(自身を除く): 52904360

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 32257, 64514, 129028, 161285, 258056, 322570, 645140, 999967, 1290280, 1999934, 3999868, 4999835, 7999736, 9999670, 19999340, 39998680]

約数ペア:

[(1, 39998680), (2, 19999340), (4, 9999670), (5, 7999736), (8, 4999835), (10, 3999868), (20, 1999934), (31, 1290280), (40, 999967), (62, 645140), (124, 322570), (155, 258056), (248, 161285), (310, 129028), (620, 64514), (1240, 32257)]