2653520

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{809}}^1$

素因数の和:863

約数の個数: 40

約数和(自身を含む): 6327720

約数和(自身を除く): 3674200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 809, 820, 1618, 1640, 3236, 3280, 4045, 6472, 8090, 12944, 16180, 32360, 33169, 64720, 66338, 132676, 165845, 265352, 331690, 530704, 663380, 1326760, 2653520]

約数ペア:

[(1, 2653520), (2, 1326760), (4, 663380), (5, 530704), (8, 331690), (10, 265352), (16, 165845), (20, 132676), (40, 66338), (41, 64720), (80, 33169), (82, 32360), (164, 16180), (205, 12944), (328, 8090), (410, 6472), (656, 4045), (809, 3280), (820, 3236), (1618, 1640)]