255696920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{3163}}^1$

素因数の和:3264

約数の個数: 64

約数和(自身を含む): 601413120

約数和(自身を除く): 345716200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 47, 86, 94, 172, 188, 215, 235, 344, 376, 430, 470, 860, 940, 1720, 1880, 2021, 3163, 4042, 6326, 8084, 10105, 12652, 15815, 16168, 20210, 25304, 31630, 40420, 63260, 80840, 126520, 136009, 148661, 272018, 297322, 544036, 594644, 680045, 743305, 1088072, 1189288, 1360090, 1486610, 2720180, 2973220, 5440360, 5946440, 6392423, 12784846, 25569692, 31962115, 51139384, 63924230, 127848460, 255696920]

約数ペア:

[(1, 255696920), (2, 127848460), (4, 63924230), (5, 51139384), (8, 31962115), (10, 25569692), (20, 12784846), (40, 6392423), (43, 5946440), (47, 5440360), (86, 2973220), (94, 2720180), (172, 1486610), (188, 1360090), (215, 1189288), (235, 1088072), (344, 743305), (376, 680045), (430, 594644), (470, 544036), (860, 297322), (940, 272018), (1720, 148661), (1880, 136009), (2021, 126520), (3163, 80840), (4042, 63260), (6326, 40420), (8084, 31630), (10105, 25304), (12652, 20210), (15815, 16168)]