80808520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8179}}^1$

素因数の和:8222

約数の個数: 64

約数和(自身を含む): 206136000

約数和(自身を除く): 125327480

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 8179, 9880, 16358, 32716, 40895, 65432, 81790, 106327, 155401, 163580, 212654, 310802, 327160, 425308, 531635, 621604, 777005, 850616, 1063270, 1243208, 1554010, 2020213, 2126540, 3108020, 4040426, 4253080, 6216040, 8080852, 10101065, 16161704, 20202130, 40404260, 80808520]

約数ペア:

[(1, 80808520), (2, 40404260), (4, 20202130), (5, 16161704), (8, 10101065), (10, 8080852), (13, 6216040), (19, 4253080), (20, 4040426), (26, 3108020), (38, 2126540), (40, 2020213), (52, 1554010), (65, 1243208), (76, 1063270), (95, 850616), (104, 777005), (130, 621604), (152, 531635), (190, 425308), (247, 327160), (260, 310802), (380, 212654), (494, 163580), (520, 155401), (760, 106327), (988, 81790), (1235, 65432), (1976, 40895), (2470, 32716), (4940, 16358), (8179, 9880)]