80479580

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1\times {\mathrm{277}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 172804800

約数和(自身を除く): 92325220

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 199, 277, 292, 365, 398, 554, 730, 796, 995, 1108, 1385, 1460, 1990, 2770, 3980, 5540, 14527, 20221, 29054, 40442, 55123, 58108, 72635, 80884, 101105, 110246, 145270, 202210, 220492, 275615, 290540, 404420, 551230, 1102460, 4023979, 8047958, 16095916, 20119895, 40239790, 80479580]

約数ペア:

[(1, 80479580), (2, 40239790), (4, 20119895), (5, 16095916), (10, 8047958), (20, 4023979), (73, 1102460), (146, 551230), (199, 404420), (277, 290540), (292, 275615), (365, 220492), (398, 202210), (554, 145270), (730, 110246), (796, 101105), (995, 80884), (1108, 72635), (1385, 58108), (1460, 55123), (1990, 40442), (2770, 29054), (3980, 20221), (5540, 14527)]