248289990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{461}}^1\times {\mathrm{1381}}^1$

素因数の和:1865

約数の個数: 64

約数和(自身を含む): 643591872

約数和(自身を除く): 395301882

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 461, 922, 1381, 1383, 2305, 2762, 2766, 4143, 4610, 5993, 6905, 6915, 8286, 11986, 13810, 13830, 17953, 17979, 20715, 29965, 35906, 35958, 41430, 53859, 59930, 89765, 89895, 107718, 179530, 179790, 269295, 538590, 636641, 1273282, 1909923, 3183205, 3819846, 6366410, 8276333, 9549615, 16552666, 19099230, 24828999, 41381665, 49657998, 82763330, 124144995, 248289990]

約数ペア:

[(1, 248289990), (2, 124144995), (3, 82763330), (5, 49657998), (6, 41381665), (10, 24828999), (13, 19099230), (15, 16552666), (26, 9549615), (30, 8276333), (39, 6366410), (65, 3819846), (78, 3183205), (130, 1909923), (195, 1273282), (390, 636641), (461, 538590), (922, 269295), (1381, 179790), (1383, 179530), (2305, 107718), (2762, 89895), (2766, 89765), (4143, 59930), (4610, 53859), (5993, 41430), (6905, 35958), (6915, 35906), (8286, 29965), (11986, 20715), (13810, 17979), (13830, 17953)]