31679880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:239

約数の個数: 128

約数和(自身を含む): 100154880

約数和(自身を除く): 68475000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 47, 60, 82, 94, 120, 123, 137, 141, 164, 188, 205, 235, 246, 274, 282, 328, 376, 410, 411, 470, 492, 548, 564, 615, 685, 705, 820, 822, 940, 984, 1096, 1128, 1230, 1370, 1410, 1640, 1644, 1880, 1927, 2055, 2460, 2740, 2820, 3288, 3854, 4110, 4920, 5480, 5617, 5640, 5781, 6439, 7708, 8220, 9635, 11234, 11562, 12878, 15416, 16440, 16851, 19270, 19317, 22468, 23124, 25756, 28085, 28905, 32195, 33702, 38540, 38634, 44936, 46248, 51512, 56170, 57810, 64390, 67404, 77080, 77268, 84255, 96585, 112340, 115620, 128780, 134808, 154536, 168510, 193170, 224680, 231240, 257560, 263999, 337020, 386340, 527998, 674040, 772680, 791997, 1055996, 1319995, 1583994, 2111992, 2639990, 3167988, 3959985, 5279980, 6335976, 7919970, 10559960, 15839940, 31679880]

約数ペア:

[(1, 31679880), (2, 15839940), (3, 10559960), (4, 7919970), (5, 6335976), (6, 5279980), (8, 3959985), (10, 3167988), (12, 2639990), (15, 2111992), (20, 1583994), (24, 1319995), (30, 1055996), (40, 791997), (41, 772680), (47, 674040), (60, 527998), (82, 386340), (94, 337020), (120, 263999), (123, 257560), (137, 231240), (141, 224680), (164, 193170), (188, 168510), (205, 154536), (235, 134808), (246, 128780), (274, 115620), (282, 112340), (328, 96585), (376, 84255), (410, 77268), (411, 77080), (470, 67404), (492, 64390), (548, 57810), (564, 56170), (615, 51512), (685, 46248), (705, 44936), (820, 38634), (822, 38540), (940, 33702), (984, 32195), (1096, 28905), (1128, 28085), (1230, 25756), (1370, 23124), (1410, 22468), (1640, 19317), (1644, 19270), (1880, 16851), (1927, 16440), (2055, 15416), (2460, 12878), (2740, 11562), (2820, 11234), (3288, 9635), (3854, 8220), (4110, 7708), (4920, 6439), (5480, 5781), (5617, 5640)]