170277940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{239}}^1\times {\mathrm{727}}^1$

素因数の和:989

約数の個数: 72

約数和(自身を含む): 418279680

約数和(自身を除く): 248001740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 239, 245, 478, 490, 727, 956, 980, 1195, 1454, 1673, 2390, 2908, 3346, 3635, 4780, 5089, 6692, 7270, 8365, 10178, 11711, 14540, 16730, 20356, 23422, 25445, 33460, 35623, 46844, 50890, 58555, 71246, 101780, 117110, 142492, 173753, 178115, 234220, 347506, 356230, 695012, 712460, 868765, 1216271, 1737530, 2432542, 3475060, 4865084, 6081355, 8513897, 12162710, 17027794, 24325420, 34055588, 42569485, 85138970, 170277940]

約数ペア:

[(1, 170277940), (2, 85138970), (4, 42569485), (5, 34055588), (7, 24325420), (10, 17027794), (14, 12162710), (20, 8513897), (28, 6081355), (35, 4865084), (49, 3475060), (70, 2432542), (98, 1737530), (140, 1216271), (196, 868765), (239, 712460), (245, 695012), (478, 356230), (490, 347506), (727, 234220), (956, 178115), (980, 173753), (1195, 142492), (1454, 117110), (1673, 101780), (2390, 71246), (2908, 58555), (3346, 50890), (3635, 46844), (4780, 35623), (5089, 33460), (6692, 25445), (7270, 23422), (8365, 20356), (10178, 16730), (11711, 14540)]