12739240

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{227}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 30533760

約数和(自身を除く): 17794520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 61, 92, 115, 122, 184, 227, 230, 244, 305, 454, 460, 488, 610, 908, 920, 1135, 1220, 1403, 1816, 2270, 2440, 2806, 4540, 5221, 5612, 7015, 9080, 10442, 11224, 13847, 14030, 20884, 26105, 27694, 28060, 41768, 52210, 55388, 56120, 69235, 104420, 110776, 138470, 208840, 276940, 318481, 553880, 636962, 1273924, 1592405, 2547848, 3184810, 6369620, 12739240]

約数ペア:

[(1, 12739240), (2, 6369620), (4, 3184810), (5, 2547848), (8, 1592405), (10, 1273924), (20, 636962), (23, 553880), (40, 318481), (46, 276940), (61, 208840), (92, 138470), (115, 110776), (122, 104420), (184, 69235), (227, 56120), (230, 55388), (244, 52210), (305, 41768), (454, 28060), (460, 27694), (488, 26105), (610, 20884), (908, 14030), (920, 13847), (1135, 11224), (1220, 10442), (1403, 9080), (1816, 7015), (2270, 5612), (2440, 5221), (2806, 4540)]