21437760

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:320

約数の個数: 112

約数和(自身を含む): 68982336

約数和(自身を除く): 47544576

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 137, 160, 163, 192, 240, 274, 320, 326, 411, 480, 489, 548, 652, 685, 815, 822, 960, 978, 1096, 1304, 1370, 1630, 1644, 1956, 2055, 2192, 2445, 2608, 2740, 3260, 3288, 3912, 4110, 4384, 4890, 5216, 5480, 6520, 6576, 7824, 8220, 8768, 9780, 10432, 10960, 13040, 13152, 15648, 16440, 19560, 21920, 22331, 26080, 26304, 31296, 32880, 39120, 43840, 44662, 52160, 65760, 66993, 78240, 89324, 111655, 131520, 133986, 156480, 178648, 223310, 267972, 334965, 357296, 446620, 535944, 669930, 714592, 893240, 1071888, 1339860, 1429184, 1786480, 2143776, 2679720, 3572960, 4287552, 5359440, 7145920, 10718880, 21437760]

約数ペア:

[(1, 21437760), (2, 10718880), (3, 7145920), (4, 5359440), (5, 4287552), (6, 3572960), (8, 2679720), (10, 2143776), (12, 1786480), (15, 1429184), (16, 1339860), (20, 1071888), (24, 893240), (30, 714592), (32, 669930), (40, 535944), (48, 446620), (60, 357296), (64, 334965), (80, 267972), (96, 223310), (120, 178648), (137, 156480), (160, 133986), (163, 131520), (192, 111655), (240, 89324), (274, 78240), (320, 66993), (326, 65760), (411, 52160), (480, 44662), (489, 43840), (548, 39120), (652, 32880), (685, 31296), (815, 26304), (822, 26080), (960, 22331), (978, 21920), (1096, 19560), (1304, 16440), (1370, 15648), (1630, 13152), (1644, 13040), (1956, 10960), (2055, 10432), (2192, 9780), (2445, 8768), (2608, 8220), (2740, 7824), (3260, 6576), (3288, 6520), (3912, 5480), (4110, 5216), (4384, 4890)]