17980740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{523}}^1$

素因数の和:729

約数の個数: 72

約数和(自身を含む): 54931968

約数和(自身を除く): 36951228

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 191, 382, 523, 573, 764, 955, 1046, 1146, 1569, 1719, 1910, 2092, 2292, 2615, 2865, 3138, 3438, 3820, 4707, 5230, 5730, 6276, 6876, 7845, 8595, 9414, 10460, 11460, 15690, 17190, 18828, 23535, 31380, 34380, 47070, 94140, 99893, 199786, 299679, 399572, 499465, 599358, 899037, 998930, 1198716, 1498395, 1798074, 1997860, 2996790, 3596148, 4495185, 5993580, 8990370, 17980740]

約数ペア:

[(1, 17980740), (2, 8990370), (3, 5993580), (4, 4495185), (5, 3596148), (6, 2996790), (9, 1997860), (10, 1798074), (12, 1498395), (15, 1198716), (18, 998930), (20, 899037), (30, 599358), (36, 499465), (45, 399572), (60, 299679), (90, 199786), (180, 99893), (191, 94140), (382, 47070), (523, 34380), (573, 31380), (764, 23535), (955, 18828), (1046, 17190), (1146, 15690), (1569, 11460), (1719, 10460), (1910, 9414), (2092, 8595), (2292, 7845), (2615, 6876), (2865, 6276), (3138, 5730), (3438, 5230), (3820, 4707)]