20771640

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{2137}}^1$

素因数の和:2163

約数の個数: 96

約数和(自身を含む): 70040880

約数和(自身を除く): 49269240

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, 243, 270, 324, 360, 405, 486, 540, 648, 810, 972, 1080, 1215, 1620, 1944, 2137, 2430, 3240, 4274, 4860, 6411, 8548, 9720, 10685, 12822, 17096, 19233, 21370, 25644, 32055, 38466, 42740, 51288, 57699, 64110, 76932, 85480, 96165, 115398, 128220, 153864, 173097, 192330, 230796, 256440, 288495, 346194, 384660, 461592, 519291, 576990, 692388, 769320, 865485, 1038582, 1153980, 1384776, 1730970, 2077164, 2307960, 2596455, 3461940, 4154328, 5192910, 6923880, 10385820, 20771640]

約数ペア:

[(1, 20771640), (2, 10385820), (3, 6923880), (4, 5192910), (5, 4154328), (6, 3461940), (8, 2596455), (9, 2307960), (10, 2077164), (12, 1730970), (15, 1384776), (18, 1153980), (20, 1038582), (24, 865485), (27, 769320), (30, 692388), (36, 576990), (40, 519291), (45, 461592), (54, 384660), (60, 346194), (72, 288495), (81, 256440), (90, 230796), (108, 192330), (120, 173097), (135, 153864), (162, 128220), (180, 115398), (216, 96165), (243, 85480), (270, 76932), (324, 64110), (360, 57699), (405, 51288), (486, 42740), (540, 38466), (648, 32055), (810, 25644), (972, 21370), (1080, 19233), (1215, 17096), (1620, 12822), (1944, 10685), (2137, 9720), (2430, 8548), (3240, 6411), (4274, 4860)]