256641570

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{40163}}^1$

素因数の和:40247

約数の個数: 48

約数和(自身を含む): 676683072

約数和(自身を除く): 420041502

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 71, 90, 142, 213, 355, 426, 639, 710, 1065, 1278, 2130, 3195, 6390, 40163, 80326, 120489, 200815, 240978, 361467, 401630, 602445, 722934, 1204890, 1807335, 2851573, 3614670, 5703146, 8554719, 14257865, 17109438, 25664157, 28515730, 42773595, 51328314, 85547190, 128320785, 256641570]

約数ペア:

[(1, 256641570), (2, 128320785), (3, 85547190), (5, 51328314), (6, 42773595), (9, 28515730), (10, 25664157), (15, 17109438), (18, 14257865), (30, 8554719), (45, 5703146), (71, 3614670), (90, 2851573), (142, 1807335), (213, 1204890), (355, 722934), (426, 602445), (639, 401630), (710, 361467), (1065, 240978), (1278, 200815), (2130, 120489), (3195, 80326), (6390, 40163)]