21647280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{90197}}^1$

素因数の和:90213

約数の個数: 40

約数和(自身を含む): 67107312

約数和(自身を除く): 45460032

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 90197, 180394, 270591, 360788, 450985, 541182, 721576, 901970, 1082364, 1352955, 1443152, 1803940, 2164728, 2705910, 3607880, 4329456, 5411820, 7215760, 10823640, 21647280]

約数ペア:

[(1, 21647280), (2, 10823640), (3, 7215760), (4, 5411820), (5, 4329456), (6, 3607880), (8, 2705910), (10, 2164728), (12, 1803940), (15, 1443152), (16, 1352955), (20, 1082364), (24, 901970), (30, 721576), (40, 541182), (48, 450985), (60, 360788), (80, 270591), (120, 180394), (240, 90197)]