20546240

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1$

素因数の和:490

約数の個数: 112

約数和(自身を含む): 57607200

約数和(自身を除く): 37060960

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 64, 65, 80, 88, 104, 110, 130, 143, 160, 176, 208, 220, 260, 286, 320, 352, 416, 440, 449, 520, 572, 704, 715, 832, 880, 898, 1040, 1144, 1430, 1760, 1796, 2080, 2245, 2288, 2860, 3520, 3592, 4160, 4490, 4576, 4939, 5720, 5837, 7184, 8980, 9152, 9878, 11440, 11674, 14368, 17960, 19756, 22880, 23348, 24695, 28736, 29185, 35920, 39512, 45760, 46696, 49390, 58370, 64207, 71840, 79024, 93392, 98780, 116740, 128414, 143680, 158048, 186784, 197560, 233480, 256828, 316096, 321035, 373568, 395120, 466960, 513656, 642070, 790240, 933920, 1027312, 1284140, 1580480, 1867840, 2054624, 2568280, 4109248, 5136560, 10273120, 20546240]

約数ペア:

[(1, 20546240), (2, 10273120), (4, 5136560), (5, 4109248), (8, 2568280), (10, 2054624), (11, 1867840), (13, 1580480), (16, 1284140), (20, 1027312), (22, 933920), (26, 790240), (32, 642070), (40, 513656), (44, 466960), (52, 395120), (55, 373568), (64, 321035), (65, 316096), (80, 256828), (88, 233480), (104, 197560), (110, 186784), (130, 158048), (143, 143680), (160, 128414), (176, 116740), (208, 98780), (220, 93392), (260, 79024), (286, 71840), (320, 64207), (352, 58370), (416, 49390), (440, 46696), (449, 45760), (520, 39512), (572, 35920), (704, 29185), (715, 28736), (832, 24695), (880, 23348), (898, 22880), (1040, 19756), (1144, 17960), (1430, 14368), (1760, 11674), (1796, 11440), (2080, 9878), (2245, 9152), (2288, 8980), (2860, 7184), (3520, 5837), (3592, 5720), (4160, 4939), (4490, 4576)]