90620720

素因数分解:

$2^4\times 5^1\times {\mathrm{269}}^1\times {\mathrm{4211}}^1$

素因数の和:4493

約数の個数: 40

約数和(自身を含む): 211526640

約数和(自身を除く): 120905920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 269, 538, 1076, 1345, 2152, 2690, 4211, 4304, 5380, 8422, 10760, 16844, 21055, 21520, 33688, 42110, 67376, 84220, 168440, 336880, 1132759, 2265518, 4531036, 5663795, 9062072, 11327590, 18124144, 22655180, 45310360, 90620720]

約数ペア:

[(1, 90620720), (2, 45310360), (4, 22655180), (5, 18124144), (8, 11327590), (10, 9062072), (16, 5663795), (20, 4531036), (40, 2265518), (80, 1132759), (269, 336880), (538, 168440), (1076, 84220), (1345, 67376), (2152, 42110), (2690, 33688), (4211, 21520), (4304, 21055), (5380, 16844), (8422, 10760)]