321874540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{6221}}^1$

素因数の和:6442

約数の個数: 48

約数和(自身を含む): 731707200

約数和(自身を除く): 409832660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 199, 260, 398, 796, 995, 1990, 2587, 3980, 5174, 6221, 10348, 12442, 12935, 24884, 25870, 31105, 51740, 62210, 80873, 124420, 161746, 323492, 404365, 808730, 1237979, 1617460, 2475958, 4951916, 6189895, 12379790, 16093727, 24759580, 32187454, 64374908, 80468635, 160937270, 321874540]

約数ペア:

[(1, 321874540), (2, 160937270), (4, 80468635), (5, 64374908), (10, 32187454), (13, 24759580), (20, 16093727), (26, 12379790), (52, 6189895), (65, 4951916), (130, 2475958), (199, 1617460), (260, 1237979), (398, 808730), (796, 404365), (995, 323492), (1990, 161746), (2587, 124420), (3980, 80873), (5174, 62210), (6221, 51740), (10348, 31105), (12442, 25870), (12935, 24884)]