19944420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{491}}^1\times {\mathrm{677}}^1$

素因数の和:1180

約数の個数: 48

約数和(自身を含む): 56040768

約数和(自身を除く): 36096348

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 491, 677, 982, 1354, 1473, 1964, 2031, 2455, 2708, 2946, 3385, 4062, 4910, 5892, 6770, 7365, 8124, 9820, 10155, 13540, 14730, 20310, 29460, 40620, 332407, 664814, 997221, 1329628, 1662035, 1994442, 3324070, 3988884, 4986105, 6648140, 9972210, 19944420]

約数ペア:

[(1, 19944420), (2, 9972210), (3, 6648140), (4, 4986105), (5, 3988884), (6, 3324070), (10, 1994442), (12, 1662035), (15, 1329628), (20, 997221), (30, 664814), (60, 332407), (491, 40620), (677, 29460), (982, 20310), (1354, 14730), (1473, 13540), (1964, 10155), (2031, 9820), (2455, 8124), (2708, 7365), (2946, 6770), (3385, 5892), (4062, 4910)]