28105760

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{10333}}^1$

素因数の和:10365

約数の個数: 48

約数和(自身を含む): 70312536

約数和(自身を除く): 42206776

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 10333, 20666, 41332, 51665, 82664, 103330, 165328, 175661, 206660, 330656, 351322, 413320, 702644, 826640, 878305, 1405288, 1653280, 1756610, 2810576, 3513220, 5621152, 7026440, 14052880, 28105760]

約数ペア:

[(1, 28105760), (2, 14052880), (4, 7026440), (5, 5621152), (8, 3513220), (10, 2810576), (16, 1756610), (17, 1653280), (20, 1405288), (32, 878305), (34, 826640), (40, 702644), (68, 413320), (80, 351322), (85, 330656), (136, 206660), (160, 175661), (170, 165328), (272, 103330), (340, 82664), (544, 51665), (680, 41332), (1360, 20666), (2720, 10333)]