28681740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2017}}^1$

素因数の和:2111

約数の個数: 72

約数和(自身を含む): 88146240

約数和(自身を除く): 59464500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 180, 237, 316, 395, 474, 711, 790, 948, 1185, 1422, 1580, 2017, 2370, 2844, 3555, 4034, 4740, 6051, 7110, 8068, 10085, 12102, 14220, 18153, 20170, 24204, 30255, 36306, 40340, 60510, 72612, 90765, 121020, 159343, 181530, 318686, 363060, 478029, 637372, 796715, 956058, 1434087, 1593430, 1912116, 2390145, 2868174, 3186860, 4780290, 5736348, 7170435, 9560580, 14340870, 28681740]

約数ペア:

[(1, 28681740), (2, 14340870), (3, 9560580), (4, 7170435), (5, 5736348), (6, 4780290), (9, 3186860), (10, 2868174), (12, 2390145), (15, 1912116), (18, 1593430), (20, 1434087), (30, 956058), (36, 796715), (45, 637372), (60, 478029), (79, 363060), (90, 318686), (158, 181530), (180, 159343), (237, 121020), (316, 90765), (395, 72612), (474, 60510), (711, 40340), (790, 36306), (948, 30255), (1185, 24204), (1422, 20170), (1580, 18153), (2017, 14220), (2370, 12102), (2844, 10085), (3555, 8068), (4034, 7110), (4740, 6051)]