51715240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{281}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 120605760

約数和(自身を除く): 68890520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 107, 172, 214, 215, 281, 344, 428, 430, 535, 562, 856, 860, 1070, 1124, 1405, 1720, 2140, 2248, 2810, 4280, 4601, 5620, 9202, 11240, 12083, 18404, 23005, 24166, 30067, 36808, 46010, 48332, 60134, 60415, 92020, 96664, 120268, 120830, 150335, 184040, 240536, 241660, 300670, 483320, 601340, 1202680, 1292881, 2585762, 5171524, 6464405, 10343048, 12928810, 25857620, 51715240]

約数ペア:

[(1, 51715240), (2, 25857620), (4, 12928810), (5, 10343048), (8, 6464405), (10, 5171524), (20, 2585762), (40, 1292881), (43, 1202680), (86, 601340), (107, 483320), (172, 300670), (214, 241660), (215, 240536), (281, 184040), (344, 150335), (428, 120830), (430, 120268), (535, 96664), (562, 92020), (856, 60415), (860, 60134), (1070, 48332), (1124, 46010), (1405, 36808), (1720, 30067), (2140, 24166), (2248, 23005), (2810, 18404), (4280, 12083), (4601, 11240), (5620, 9202)]