661251120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{2755213}}^1$

素因数の和:2755229

約数の個数: 40

約数和(自身を含む): 2049879216

約数和(自身を除く): 1388628096

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 2755213, 5510426, 8265639, 11020852, 13776065, 16531278, 22041704, 27552130, 33062556, 41328195, 44083408, 55104260, 66125112, 82656390, 110208520, 132250224, 165312780, 220417040, 330625560, 661251120]

約数ペア:

[(1, 661251120), (2, 330625560), (3, 220417040), (4, 165312780), (5, 132250224), (6, 110208520), (8, 82656390), (10, 66125112), (12, 55104260), (15, 44083408), (16, 41328195), (20, 33062556), (24, 27552130), (30, 22041704), (40, 16531278), (48, 13776065), (60, 11020852), (80, 8265639), (120, 5510426), (240, 2755213)]