80890460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{1109}}^1$

素因数の和:1646

約数の個数: 48

約数和(自身を含む): 194685120

約数和(自身を除く): 113794660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 521, 1042, 1109, 2084, 2218, 2605, 3647, 4436, 5210, 5545, 7294, 7763, 10420, 11090, 14588, 15526, 18235, 22180, 31052, 36470, 38815, 72940, 77630, 155260, 577789, 1155578, 2311156, 2888945, 4044523, 5777890, 8089046, 11555780, 16178092, 20222615, 40445230, 80890460]

約数ペア:

[(1, 80890460), (2, 40445230), (4, 20222615), (5, 16178092), (7, 11555780), (10, 8089046), (14, 5777890), (20, 4044523), (28, 2888945), (35, 2311156), (70, 1155578), (140, 577789), (521, 155260), (1042, 77630), (1109, 72940), (2084, 38815), (2218, 36470), (2605, 31052), (3647, 22180), (4436, 18235), (5210, 15526), (5545, 14588), (7294, 11090), (7763, 10420)]