668855341

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{331}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 893818368

約数和(自身を除く): 224963027

約数列:

[1, 7, 11, 23, 49, 77, 161, 163, 253, 331, 539, 1127, 1141, 1771, 1793, 2317, 3641, 3749, 7613, 7987, 12397, 12551, 16219, 25487, 26243, 41239, 53291, 53953, 83743, 87857, 178409, 183701, 288673, 373037, 377671, 586201, 593483, 1240919, 2020711, 2643697, 4103407, 4154381, 8686433, 13650109, 29080667, 60805031, 95550763, 668855341]

約数ペア:

[(1, 668855341), (7, 95550763), (11, 60805031), (23, 29080667), (49, 13650109), (77, 8686433), (161, 4154381), (163, 4103407), (253, 2643697), (331, 2020711), (539, 1240919), (1127, 593483), (1141, 586201), (1771, 377671), (1793, 373037), (2317, 288673), (3641, 183701), (3749, 178409), (7613, 87857), (7987, 83743), (12397, 53953), (12551, 53291), (16219, 41239), (25487, 26243)]