20445540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{293}}^1\times {\mathrm{1163}}^1$

素因数の和:1468

約数の個数: 48

約数和(自身を含む): 57492288

約数和(自身を除く): 37046748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 293, 586, 879, 1163, 1172, 1465, 1758, 2326, 2930, 3489, 3516, 4395, 4652, 5815, 5860, 6978, 8790, 11630, 13956, 17445, 17580, 23260, 34890, 69780, 340759, 681518, 1022277, 1363036, 1703795, 2044554, 3407590, 4089108, 5111385, 6815180, 10222770, 20445540]

約数ペア:

[(1, 20445540), (2, 10222770), (3, 6815180), (4, 5111385), (5, 4089108), (6, 3407590), (10, 2044554), (12, 1703795), (15, 1363036), (20, 1022277), (30, 681518), (60, 340759), (293, 69780), (586, 34890), (879, 23260), (1163, 17580), (1172, 17445), (1465, 13956), (1758, 11630), (2326, 8790), (2930, 6978), (3489, 5860), (3516, 5815), (4395, 4652)]