20475130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{659}}^1$

素因数の和:918

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 19441670

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 239, 478, 659, 1195, 1318, 2390, 3107, 3295, 6214, 6590, 8567, 15535, 17134, 31070, 42835, 85670, 157501, 315002, 787505, 1575010, 2047513, 4095026, 10237565, 20475130]

約数ペア:

[(1, 20475130), (2, 10237565), (5, 4095026), (10, 2047513), (13, 1575010), (26, 787505), (65, 315002), (130, 157501), (239, 85670), (478, 42835), (659, 31070), (1195, 17134), (1318, 15535), (2390, 8567), (3107, 6590), (3295, 6214)]