720388728

素因数分解:

$2^3\times 3^4\times {\mathrm{1111711}}^1$

素因数の和:1111729

約数の個数: 40

約数和(自身を含む): 2017757280

約数和(自身を除く): 1297368552

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 1111711, 2223422, 3335133, 4446844, 6670266, 8893688, 10005399, 13340532, 20010798, 26681064, 30016197, 40021596, 60032394, 80043192, 90048591, 120064788, 180097182, 240129576, 360194364, 720388728]

約数ペア:

[(1, 720388728), (2, 360194364), (3, 240129576), (4, 180097182), (6, 120064788), (8, 90048591), (9, 80043192), (12, 60032394), (18, 40021596), (24, 30016197), (27, 26681064), (36, 20010798), (54, 13340532), (72, 10005399), (81, 8893688), (108, 6670266), (162, 4446844), (216, 3335133), (324, 2223422), (648, 1111711)]