21842640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1319}}^1$

素因数の和:1361

約数の個数: 120

約数和(自身を含む): 76602240

約数和(自身を除く): 54759600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 115, 120, 138, 144, 180, 184, 207, 230, 240, 276, 345, 360, 368, 414, 460, 552, 690, 720, 828, 920, 1035, 1104, 1319, 1380, 1656, 1840, 2070, 2638, 2760, 3312, 3957, 4140, 5276, 5520, 6595, 7914, 8280, 10552, 11871, 13190, 15828, 16560, 19785, 21104, 23742, 26380, 30337, 31656, 39570, 47484, 52760, 59355, 60674, 63312, 79140, 91011, 94968, 105520, 118710, 121348, 151685, 158280, 182022, 189936, 237420, 242696, 273033, 303370, 316560, 364044, 455055, 474840, 485392, 546066, 606740, 728088, 910110, 949680, 1092132, 1213480, 1365165, 1456176, 1820220, 2184264, 2426960, 2730330, 3640440, 4368528, 5460660, 7280880, 10921320, 21842640]

約数ペア:

[(1, 21842640), (2, 10921320), (3, 7280880), (4, 5460660), (5, 4368528), (6, 3640440), (8, 2730330), (9, 2426960), (10, 2184264), (12, 1820220), (15, 1456176), (16, 1365165), (18, 1213480), (20, 1092132), (23, 949680), (24, 910110), (30, 728088), (36, 606740), (40, 546066), (45, 485392), (46, 474840), (48, 455055), (60, 364044), (69, 316560), (72, 303370), (80, 273033), (90, 242696), (92, 237420), (115, 189936), (120, 182022), (138, 158280), (144, 151685), (180, 121348), (184, 118710), (207, 105520), (230, 94968), (240, 91011), (276, 79140), (345, 63312), (360, 60674), (368, 59355), (414, 52760), (460, 47484), (552, 39570), (690, 31656), (720, 30337), (828, 26380), (920, 23742), (1035, 21104), (1104, 19785), (1319, 16560), (1380, 15828), (1656, 13190), (1840, 11871), (2070, 10552), (2638, 8280), (2760, 7914), (3312, 6595), (3957, 5520), (4140, 5276)]