20508795

素因数分解:

$3^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{641}}^1$

素因数の和:737

約数の個数: 40

約数和(自身を含む): 37287360

約数和(自身を除く): 16778565

約数列:

[1, 3, 5, 9, 15, 27, 45, 79, 81, 135, 237, 395, 405, 641, 711, 1185, 1923, 2133, 3205, 3555, 5769, 6399, 9615, 10665, 17307, 28845, 31995, 50639, 51921, 86535, 151917, 253195, 259605, 455751, 759585, 1367253, 2278755, 4101759, 6836265, 20508795]

約数ペア:

[(1, 20508795), (3, 6836265), (5, 4101759), (9, 2278755), (15, 1367253), (27, 759585), (45, 455751), (79, 259605), (81, 253195), (135, 151917), (237, 86535), (395, 51921), (405, 50639), (641, 31995), (711, 28845), (1185, 17307), (1923, 10665), (2133, 9615), (3205, 6399), (3555, 5769)]