207958380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{495139}}^1$

素因数の和:495158

約数の個数: 48

約数和(自身を含む): 665468160

約数和(自身を除く): 457509780

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, 495139, 990278, 1485417, 1980556, 2475695, 2970834, 3465973, 4951390, 5941668, 6931946, 7427085, 9902780, 10397919, 13863892, 14854170, 17329865, 20795838, 29708340, 34659730, 41591676, 51989595, 69319460, 103979190, 207958380]

約数ペア:

[(1, 207958380), (2, 103979190), (3, 69319460), (4, 51989595), (5, 41591676), (6, 34659730), (7, 29708340), (10, 20795838), (12, 17329865), (14, 14854170), (15, 13863892), (20, 10397919), (21, 9902780), (28, 7427085), (30, 6931946), (35, 5941668), (42, 4951390), (60, 3465973), (70, 2970834), (84, 2475695), (105, 1980556), (140, 1485417), (210, 990278), (420, 495139)]