31216990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:277

約数の個数: 64

約数和(自身を含む): 67132800

約数和(自身を除く): 35915810

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 73, 82, 146, 149, 205, 287, 298, 365, 410, 511, 574, 730, 745, 1022, 1043, 1435, 1490, 2086, 2555, 2870, 2993, 5110, 5215, 5986, 6109, 10430, 10877, 12218, 14965, 20951, 21754, 29930, 30545, 41902, 42763, 54385, 61090, 76139, 85526, 104755, 108770, 152278, 209510, 213815, 380695, 427630, 445957, 761390, 891914, 2229785, 3121699, 4459570, 6243398, 15608495, 31216990]

約数ペア:

[(1, 31216990), (2, 15608495), (5, 6243398), (7, 4459570), (10, 3121699), (14, 2229785), (35, 891914), (41, 761390), (70, 445957), (73, 427630), (82, 380695), (146, 213815), (149, 209510), (205, 152278), (287, 108770), (298, 104755), (365, 85526), (410, 76139), (511, 61090), (574, 54385), (730, 42763), (745, 41902), (1022, 30545), (1043, 29930), (1435, 21754), (1490, 20951), (2086, 14965), (2555, 12218), (2870, 10877), (2993, 10430), (5110, 6109), (5215, 5986)]