645901802

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{479}}^1$

素因数の和:771

約数の個数: 64

約数和(自身を含む): 1238630400

約数和(自身を除く): 592728598

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 182, 217, 239, 403, 434, 478, 479, 806, 958, 1673, 2821, 3107, 3346, 3353, 5642, 6214, 6227, 6706, 7409, 12454, 14818, 14849, 21749, 29698, 43498, 43589, 51863, 87178, 96317, 103726, 103943, 114481, 192634, 193037, 207886, 228962, 386074, 674219, 801367, 1348438, 1351259, 1488253, 1602734, 2702518, 2976506, 3548911, 7097822, 10417771, 20835542, 24842377, 46135843, 49684754, 92271686, 322950901, 645901802]

約数ペア:

[(1, 645901802), (2, 322950901), (7, 92271686), (13, 49684754), (14, 46135843), (26, 24842377), (31, 20835542), (62, 10417771), (91, 7097822), (182, 3548911), (217, 2976506), (239, 2702518), (403, 1602734), (434, 1488253), (478, 1351259), (479, 1348438), (806, 801367), (958, 674219), (1673, 386074), (2821, 228962), (3107, 207886), (3346, 193037), (3353, 192634), (5642, 114481), (6214, 103943), (6227, 103726), (6706, 96317), (7409, 87178), (12454, 51863), (14818, 43589), (14849, 43498), (21749, 29698)]