87405760

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21011}}^1$

素因数の和:21041

約数の個数: 56

約数和(自身を含む): 224156016

約数和(自身を除く): 136750256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 21011, 42022, 84044, 105055, 168088, 210110, 273143, 336176, 420220, 546286, 672352, 840440, 1092572, 1344704, 1365715, 1680880, 2185144, 2731430, 3361760, 4370288, 5462860, 6723520, 8740576, 10925720, 17481152, 21851440, 43702880, 87405760]

約数ペア:

[(1, 87405760), (2, 43702880), (4, 21851440), (5, 17481152), (8, 10925720), (10, 8740576), (13, 6723520), (16, 5462860), (20, 4370288), (26, 3361760), (32, 2731430), (40, 2185144), (52, 1680880), (64, 1365715), (65, 1344704), (80, 1092572), (104, 840440), (130, 672352), (160, 546286), (208, 420220), (260, 336176), (320, 273143), (416, 210110), (520, 168088), (832, 105055), (1040, 84044), (2080, 42022), (4160, 21011)]