18882780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{44959}}^1$

素因数の和:44978

約数の個数: 48

約数和(自身を含む): 60426240

約数和(自身を除く): 41543460

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 44959, 89918, 134877, 179836, 224795, 269754, 314713, 449590, 539508, 629426, 674385, 899180, 944139, 1258852, 1348770, 1573565, 1888278, 2697540, 3147130, 3776556, 4720695, 6294260, 9441390, 18882780]

約数ペア:

[(1, 18882780), (2, 9441390), (3, 6294260), (4, 4720695), (5, 3776556), (6, 3147130), (7, 2697540), (10, 1888278), (12, 1573565), (14, 1348770), (15, 1258852), (20, 944139), (21, 899180), (28, 674385), (30, 629426), (35, 539508), (42, 449590), (60, 314713), (70, 269754), (84, 224795), (105, 179836), (140, 134877), (210, 89918), (420, 44959)]