1973960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{809}}^1$

素因数の和:881

約数の個数: 32

約数和(自身を含む): 4519800

約数和(自身を除く): 2545840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 809, 1220, 1618, 2440, 3236, 4045, 6472, 8090, 16180, 32360, 49349, 98698, 197396, 246745, 394792, 493490, 986980, 1973960]

約数ペア:

[(1, 1973960), (2, 986980), (4, 493490), (5, 394792), (8, 246745), (10, 197396), (20, 98698), (40, 49349), (61, 32360), (122, 16180), (244, 8090), (305, 6472), (488, 4045), (610, 3236), (809, 2440), (1220, 1618)]