81589680

素因数分解:

$2^4\times 3^6\times 5^1\times {\mathrm{1399}}^1$

素因数の和:1430

約数の個数: 140

約数和(自身を含む): 284617200

約数和(自身を除く): 203027520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 360, 405, 432, 486, 540, 648, 720, 729, 810, 972, 1080, 1215, 1296, 1399, 1458, 1620, 1944, 2160, 2430, 2798, 2916, 3240, 3645, 3888, 4197, 4860, 5596, 5832, 6480, 6995, 7290, 8394, 9720, 11192, 11664, 12591, 13990, 14580, 16788, 19440, 20985, 22384, 25182, 27980, 29160, 33576, 37773, 41970, 50364, 55960, 58320, 62955, 67152, 75546, 83940, 100728, 111920, 113319, 125910, 151092, 167880, 188865, 201456, 226638, 251820, 302184, 335760, 339957, 377730, 453276, 503640, 566595, 604368, 679914, 755460, 906552, 1007280, 1019871, 1133190, 1359828, 1510920, 1699785, 1813104, 2039742, 2266380, 2719656, 3021840, 3399570, 4079484, 4532760, 5099355, 5439312, 6799140, 8158968, 9065520, 10198710, 13598280, 16317936, 20397420, 27196560, 40794840, 81589680]

約数ペア:

[(1, 81589680), (2, 40794840), (3, 27196560), (4, 20397420), (5, 16317936), (6, 13598280), (8, 10198710), (9, 9065520), (10, 8158968), (12, 6799140), (15, 5439312), (16, 5099355), (18, 4532760), (20, 4079484), (24, 3399570), (27, 3021840), (30, 2719656), (36, 2266380), (40, 2039742), (45, 1813104), (48, 1699785), (54, 1510920), (60, 1359828), (72, 1133190), (80, 1019871), (81, 1007280), (90, 906552), (108, 755460), (120, 679914), (135, 604368), (144, 566595), (162, 503640), (180, 453276), (216, 377730), (240, 339957), (243, 335760), (270, 302184), (324, 251820), (360, 226638), (405, 201456), (432, 188865), (486, 167880), (540, 151092), (648, 125910), (720, 113319), (729, 111920), (810, 100728), (972, 83940), (1080, 75546), (1215, 67152), (1296, 62955), (1399, 58320), (1458, 55960), (1620, 50364), (1944, 41970), (2160, 37773), (2430, 33576), (2798, 29160), (2916, 27980), (3240, 25182), (3645, 22384), (3888, 20985), (4197, 19440), (4860, 16788), (5596, 14580), (5832, 13990), (6480, 12591), (6995, 11664), (7290, 11192), (8394, 9720)]