28758080

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:284

約数の個数: 112

約数和(自身を含む): 76468224

約数和(自身を除く): 47710144

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 130, 155, 160, 208, 223, 248, 260, 310, 320, 403, 416, 446, 496, 520, 620, 806, 832, 892, 992, 1040, 1115, 1240, 1612, 1784, 1984, 2015, 2080, 2230, 2480, 2899, 3224, 3568, 4030, 4160, 4460, 4960, 5798, 6448, 6913, 7136, 8060, 8920, 9920, 11596, 12896, 13826, 14272, 14495, 16120, 17840, 23192, 25792, 27652, 28990, 32240, 34565, 35680, 46384, 55304, 57980, 64480, 69130, 71360, 89869, 92768, 110608, 115960, 128960, 138260, 179738, 185536, 221216, 231920, 276520, 359476, 442432, 449345, 463840, 553040, 718952, 898690, 927680, 1106080, 1437904, 1797380, 2212160, 2875808, 3594760, 5751616, 7189520, 14379040, 28758080]

約数ペア:

[(1, 28758080), (2, 14379040), (4, 7189520), (5, 5751616), (8, 3594760), (10, 2875808), (13, 2212160), (16, 1797380), (20, 1437904), (26, 1106080), (31, 927680), (32, 898690), (40, 718952), (52, 553040), (62, 463840), (64, 449345), (65, 442432), (80, 359476), (104, 276520), (124, 231920), (130, 221216), (155, 185536), (160, 179738), (208, 138260), (223, 128960), (248, 115960), (260, 110608), (310, 92768), (320, 89869), (403, 71360), (416, 69130), (446, 64480), (496, 57980), (520, 55304), (620, 46384), (806, 35680), (832, 34565), (892, 32240), (992, 28990), (1040, 27652), (1115, 25792), (1240, 23192), (1612, 17840), (1784, 16120), (1984, 14495), (2015, 14272), (2080, 13826), (2230, 12896), (2480, 11596), (2899, 9920), (3224, 8920), (3568, 8060), (4030, 7136), (4160, 6913), (4460, 6448), (4960, 5798)]