71733580

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{547}}^1$

素因数の和:718

約数の個数: 48

約数和(自身を含む): 154667520

約数和(自身を除く): 82933940

約数列:

[1, 2, 4, 5, 10, 20, 79, 83, 158, 166, 316, 332, 395, 415, 547, 790, 830, 1094, 1580, 1660, 2188, 2735, 5470, 6557, 10940, 13114, 26228, 32785, 43213, 45401, 65570, 86426, 90802, 131140, 172852, 181604, 216065, 227005, 432130, 454010, 864260, 908020, 3586679, 7173358, 14346716, 17933395, 35866790, 71733580]

約数ペア:

[(1, 71733580), (2, 35866790), (4, 17933395), (5, 14346716), (10, 7173358), (20, 3586679), (79, 908020), (83, 864260), (158, 454010), (166, 432130), (316, 227005), (332, 216065), (395, 181604), (415, 172852), (547, 131140), (790, 90802), (830, 86426), (1094, 65570), (1580, 45401), (1660, 43213), (2188, 32785), (2735, 26228), (5470, 13114), (6557, 10940)]