20382840

素因数分解:

$2^3\times 3^7\times 5^1\times {\mathrm{233}}^1$

素因数の和:265

約数の個数: 128

約数和(自身を含む): 69076800

約数和(自身を除く): 48693960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 233, 243, 270, 324, 360, 405, 466, 486, 540, 648, 699, 729, 810, 932, 972, 1080, 1165, 1215, 1398, 1458, 1620, 1864, 1944, 2097, 2187, 2330, 2430, 2796, 2916, 3240, 3495, 3645, 4194, 4374, 4660, 4860, 5592, 5832, 6291, 6990, 7290, 8388, 8748, 9320, 9720, 10485, 10935, 12582, 13980, 14580, 16776, 17496, 18873, 20970, 21870, 25164, 27960, 29160, 31455, 37746, 41940, 43740, 50328, 56619, 62910, 75492, 83880, 87480, 94365, 113238, 125820, 150984, 169857, 188730, 226476, 251640, 283095, 339714, 377460, 452952, 509571, 566190, 679428, 754920, 849285, 1019142, 1132380, 1358856, 1698570, 2038284, 2264760, 2547855, 3397140, 4076568, 5095710, 6794280, 10191420, 20382840]

約数ペア:

[(1, 20382840), (2, 10191420), (3, 6794280), (4, 5095710), (5, 4076568), (6, 3397140), (8, 2547855), (9, 2264760), (10, 2038284), (12, 1698570), (15, 1358856), (18, 1132380), (20, 1019142), (24, 849285), (27, 754920), (30, 679428), (36, 566190), (40, 509571), (45, 452952), (54, 377460), (60, 339714), (72, 283095), (81, 251640), (90, 226476), (108, 188730), (120, 169857), (135, 150984), (162, 125820), (180, 113238), (216, 94365), (233, 87480), (243, 83880), (270, 75492), (324, 62910), (360, 56619), (405, 50328), (466, 43740), (486, 41940), (540, 37746), (648, 31455), (699, 29160), (729, 27960), (810, 25164), (932, 21870), (972, 20970), (1080, 18873), (1165, 17496), (1215, 16776), (1398, 14580), (1458, 13980), (1620, 12582), (1864, 10935), (1944, 10485), (2097, 9720), (2187, 9320), (2330, 8748), (2430, 8388), (2796, 7290), (2916, 6990), (3240, 6291), (3495, 5832), (3645, 5592), (4194, 4860), (4374, 4660)]