20893920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:145

約数の個数: 192

約数和(自身を含む): 72576000

約数和(自身を除く): 51682080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 29, 30, 32, 38, 40, 48, 57, 58, 60, 76, 79, 80, 87, 95, 96, 114, 116, 120, 145, 152, 158, 160, 174, 190, 228, 232, 237, 240, 285, 290, 304, 316, 348, 380, 395, 435, 456, 464, 474, 480, 551, 570, 580, 608, 632, 696, 760, 790, 870, 912, 928, 948, 1102, 1140, 1160, 1185, 1264, 1392, 1501, 1520, 1580, 1653, 1740, 1824, 1896, 2204, 2280, 2291, 2320, 2370, 2528, 2755, 2784, 3002, 3040, 3160, 3306, 3480, 3792, 4408, 4503, 4560, 4582, 4640, 4740, 5510, 6004, 6320, 6612, 6873, 6960, 7505, 7584, 8265, 8816, 9006, 9120, 9164, 9480, 11020, 11455, 12008, 12640, 13224, 13746, 13920, 15010, 16530, 17632, 18012, 18328, 18960, 22040, 22515, 22910, 24016, 26448, 27492, 30020, 33060, 34365, 36024, 36656, 37920, 43529, 44080, 45030, 45820, 48032, 52896, 54984, 60040, 66120, 68730, 72048, 73312, 87058, 88160, 90060, 91640, 109968, 120080, 130587, 132240, 137460, 144096, 174116, 180120, 183280, 217645, 219936, 240160, 261174, 264480, 274920, 348232, 360240, 366560, 435290, 522348, 549840, 652935, 696464, 720480, 870580, 1044696, 1099680, 1305870, 1392928, 1741160, 2089392, 2611740, 3482320, 4178784, 5223480, 6964640, 10446960, 20893920]

約数ペア:

[(1, 20893920), (2, 10446960), (3, 6964640), (4, 5223480), (5, 4178784), (6, 3482320), (8, 2611740), (10, 2089392), (12, 1741160), (15, 1392928), (16, 1305870), (19, 1099680), (20, 1044696), (24, 870580), (29, 720480), (30, 696464), (32, 652935), (38, 549840), (40, 522348), (48, 435290), (57, 366560), (58, 360240), (60, 348232), (76, 274920), (79, 264480), (80, 261174), (87, 240160), (95, 219936), (96, 217645), (114, 183280), (116, 180120), (120, 174116), (145, 144096), (152, 137460), (158, 132240), (160, 130587), (174, 120080), (190, 109968), (228, 91640), (232, 90060), (237, 88160), (240, 87058), (285, 73312), (290, 72048), (304, 68730), (316, 66120), (348, 60040), (380, 54984), (395, 52896), (435, 48032), (456, 45820), (464, 45030), (474, 44080), (480, 43529), (551, 37920), (570, 36656), (580, 36024), (608, 34365), (632, 33060), (696, 30020), (760, 27492), (790, 26448), (870, 24016), (912, 22910), (928, 22515), (948, 22040), (1102, 18960), (1140, 18328), (1160, 18012), (1185, 17632), (1264, 16530), (1392, 15010), (1501, 13920), (1520, 13746), (1580, 13224), (1653, 12640), (1740, 12008), (1824, 11455), (1896, 11020), (2204, 9480), (2280, 9164), (2291, 9120), (2320, 9006), (2370, 8816), (2528, 8265), (2755, 7584), (2784, 7505), (3002, 6960), (3040, 6873), (3160, 6612), (3306, 6320), (3480, 6004), (3792, 5510), (4408, 4740), (4503, 4640), (4560, 4582)]