256326756

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{42979}}^1$

素因数の和:43064

約数の個数: 48

約数和(自身を含む): 693181440

約数和(自身を除く): 436854684

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 71, 84, 142, 213, 284, 426, 497, 852, 994, 1491, 1988, 2982, 5964, 42979, 85958, 128937, 171916, 257874, 300853, 515748, 601706, 902559, 1203412, 1805118, 3051509, 3610236, 6103018, 9154527, 12206036, 18309054, 21360563, 36618108, 42721126, 64081689, 85442252, 128163378, 256326756]

約数ペア:

[(1, 256326756), (2, 128163378), (3, 85442252), (4, 64081689), (6, 42721126), (7, 36618108), (12, 21360563), (14, 18309054), (21, 12206036), (28, 9154527), (42, 6103018), (71, 3610236), (84, 3051509), (142, 1805118), (213, 1203412), (284, 902559), (426, 601706), (497, 515748), (852, 300853), (994, 257874), (1491, 171916), (1988, 128937), (2982, 85958), (5964, 42979)]