647577940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{863}}^1\times {\mathrm{2207}}^1$

素因数の和:3096

約数の個数: 48

約数和(自身を含む): 1442230272

約数和(自身を除く): 794652332

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 863, 1726, 2207, 3452, 4315, 4414, 8630, 8828, 11035, 14671, 17260, 22070, 29342, 37519, 44140, 58684, 73355, 75038, 146710, 150076, 187595, 293420, 375190, 750380, 1904641, 3809282, 7618564, 9523205, 19046410, 32378897, 38092820, 64757794, 129515588, 161894485, 323788970, 647577940]

約数ペア:

[(1, 647577940), (2, 323788970), (4, 161894485), (5, 129515588), (10, 64757794), (17, 38092820), (20, 32378897), (34, 19046410), (68, 9523205), (85, 7618564), (170, 3809282), (340, 1904641), (863, 750380), (1726, 375190), (2207, 293420), (3452, 187595), (4315, 150076), (4414, 146710), (8630, 75038), (8828, 73355), (11035, 58684), (14671, 44140), (17260, 37519), (22070, 29342)]