545870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:69

約数の個数: 48

約数和(自身を含む): 1185840

約数和(自身を除く): 639970

約数列:

[1, 2, 5, 10, 13, 17, 19, 26, 34, 38, 65, 85, 95, 130, 169, 170, 190, 221, 247, 323, 338, 442, 494, 646, 845, 1105, 1235, 1615, 1690, 2210, 2470, 2873, 3211, 3230, 4199, 5746, 6422, 8398, 14365, 16055, 20995, 28730, 32110, 41990, 54587, 109174, 272935, 545870]

約数ペア:

[(1, 545870), (2, 272935), (5, 109174), (10, 54587), (13, 41990), (17, 32110), (19, 28730), (26, 20995), (34, 16055), (38, 14365), (65, 8398), (85, 6422), (95, 5746), (130, 4199), (169, 3230), (170, 3211), (190, 2873), (221, 2470), (247, 2210), (323, 1690), (338, 1615), (442, 1235), (494, 1105), (646, 845)]