12921280

素因数分解:

$2^6\times 5^1\times {\mathrm{149}}^1\times {\mathrm{271}}^1$

素因数の和:437

約数の個数: 56

約数和(自身を含む): 31089600

約数和(自身を除く): 18168320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 149, 160, 271, 298, 320, 542, 596, 745, 1084, 1192, 1355, 1490, 2168, 2384, 2710, 2980, 4336, 4768, 5420, 5960, 8672, 9536, 10840, 11920, 17344, 21680, 23840, 40379, 43360, 47680, 80758, 86720, 161516, 201895, 323032, 403790, 646064, 807580, 1292128, 1615160, 2584256, 3230320, 6460640, 12921280]

約数ペア:

[(1, 12921280), (2, 6460640), (4, 3230320), (5, 2584256), (8, 1615160), (10, 1292128), (16, 807580), (20, 646064), (32, 403790), (40, 323032), (64, 201895), (80, 161516), (149, 86720), (160, 80758), (271, 47680), (298, 43360), (320, 40379), (542, 23840), (596, 21680), (745, 17344), (1084, 11920), (1192, 10840), (1355, 9536), (1490, 8672), (2168, 5960), (2384, 5420), (2710, 4768), (2980, 4336)]