20948400

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^2$

素因数の和:81

約数の個数: 270

約数和(自身を含む): 82903548

約数和(自身を除く): 61955148

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 23, 24, 25, 30, 33, 36, 40, 44, 45, 46, 48, 50, 55, 60, 66, 69, 72, 75, 80, 88, 90, 92, 99, 100, 110, 115, 120, 132, 138, 144, 150, 165, 176, 180, 184, 198, 200, 207, 220, 225, 230, 240, 253, 264, 275, 276, 300, 330, 345, 360, 368, 396, 400, 414, 440, 450, 460, 495, 506, 528, 529, 550, 552, 575, 600, 660, 690, 720, 759, 792, 825, 828, 880, 900, 920, 990, 1012, 1035, 1058, 1100, 1104, 1150, 1200, 1265, 1320, 1380, 1518, 1584, 1587, 1650, 1656, 1725, 1800, 1840, 1980, 2024, 2070, 2116, 2200, 2277, 2300, 2475, 2530, 2640, 2645, 2760, 3036, 3174, 3300, 3312, 3450, 3600, 3795, 3960, 4048, 4140, 4232, 4400, 4554, 4600, 4761, 4950, 5060, 5175, 5290, 5520, 5819, 6072, 6325, 6348, 6600, 6900, 7590, 7920, 7935, 8280, 8464, 9108, 9200, 9522, 9900, 10120, 10350, 10580, 11385, 11638, 12144, 12650, 12696, 13200, 13225, 13800, 15180, 15870, 16560, 17457, 18216, 18975, 19044, 19800, 20240, 20700, 21160, 22770, 23276, 23805, 25300, 25392, 26450, 27600, 29095, 30360, 31740, 34914, 36432, 37950, 38088, 39600, 39675, 41400, 42320, 45540, 46552, 47610, 50600, 52371, 52900, 56925, 58190, 60720, 63480, 69828, 75900, 76176, 79350, 82800, 87285, 91080, 93104, 95220, 101200, 104742, 105800, 113850, 116380, 119025, 126960, 139656, 145475, 151800, 158700, 174570, 182160, 190440, 209484, 211600, 227700, 232760, 238050, 261855, 279312, 290950, 303600, 317400, 349140, 380880, 418968, 436425, 455400, 465520, 476100, 523710, 581900, 634800, 698280, 837936, 872850, 910800, 952200, 1047420, 1163800, 1309275, 1396560, 1745700, 1904400, 2094840, 2327600, 2618550, 3491400, 4189680, 5237100, 6982800, 10474200, 20948400]

約数ペア:

[(1, 20948400), (2, 10474200), (3, 6982800), (4, 5237100), (5, 4189680), (6, 3491400), (8, 2618550), (9, 2327600), (10, 2094840), (11, 1904400), (12, 1745700), (15, 1396560), (16, 1309275), (18, 1163800), (20, 1047420), (22, 952200), (23, 910800), (24, 872850), (25, 837936), (30, 698280), (33, 634800), (36, 581900), (40, 523710), (44, 476100), (45, 465520), (46, 455400), (48, 436425), (50, 418968), (55, 380880), (60, 349140), (66, 317400), (69, 303600), (72, 290950), (75, 279312), (80, 261855), (88, 238050), (90, 232760), (92, 227700), (99, 211600), (100, 209484), (110, 190440), (115, 182160), (120, 174570), (132, 158700), (138, 151800), (144, 145475), (150, 139656), (165, 126960), (176, 119025), (180, 116380), (184, 113850), (198, 105800), (200, 104742), (207, 101200), (220, 95220), (225, 93104), (230, 91080), (240, 87285), (253, 82800), (264, 79350), (275, 76176), (276, 75900), (300, 69828), (330, 63480), (345, 60720), (360, 58190), (368, 56925), (396, 52900), (400, 52371), (414, 50600), (440, 47610), (450, 46552), (460, 45540), (495, 42320), (506, 41400), (528, 39675), (529, 39600), (550, 38088), (552, 37950), (575, 36432), (600, 34914), (660, 31740), (690, 30360), (720, 29095), (759, 27600), (792, 26450), (825, 25392), (828, 25300), (880, 23805), (900, 23276), (920, 22770), (990, 21160), (1012, 20700), (1035, 20240), (1058, 19800), (1100, 19044), (1104, 18975), (1150, 18216), (1200, 17457), (1265, 16560), (1320, 15870), (1380, 15180), (1518, 13800), (1584, 13225), (1587, 13200), (1650, 12696), (1656, 12650), (1725, 12144), (1800, 11638), (1840, 11385), (1980, 10580), (2024, 10350), (2070, 10120), (2116, 9900), (2200, 9522), (2277, 9200), (2300, 9108), (2475, 8464), (2530, 8280), (2640, 7935), (2645, 7920), (2760, 7590), (3036, 6900), (3174, 6600), (3300, 6348), (3312, 6325), (3450, 6072), (3600, 5819), (3795, 5520), (3960, 5290), (4048, 5175), (4140, 5060), (4232, 4950), (4400, 4761), (4554, 4600)]