890398747

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 1125349632

約数和(自身を除く): 234950885

約数列:

[1, 7, 23, 37, 49, 131, 161, 163, 259, 851, 917, 1127, 1141, 1813, 3013, 3749, 4847, 5957, 6031, 6419, 7987, 21091, 21353, 26243, 33929, 41699, 42217, 111481, 138713, 147637, 149471, 183701, 237503, 295519, 491119, 780367, 790061, 970991, 1046297, 3437833, 5462569, 5530427, 6796937, 18171403, 24064831, 38712989, 127199821, 890398747]

約数ペア:

[(1, 890398747), (7, 127199821), (23, 38712989), (37, 24064831), (49, 18171403), (131, 6796937), (161, 5530427), (163, 5462569), (259, 3437833), (851, 1046297), (917, 970991), (1127, 790061), (1141, 780367), (1813, 491119), (3013, 295519), (3749, 237503), (4847, 183701), (5957, 149471), (6031, 147637), (6419, 138713), (7987, 111481), (21091, 42217), (21353, 41699), (26243, 33929)]