20816400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1$

素因数の和:134

約数の個数: 240

約数和(自身を含む): 77495040

約数和(自身を除く): 56678640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 19, 20, 22, 24, 25, 30, 33, 38, 40, 44, 48, 50, 55, 57, 60, 66, 75, 76, 80, 83, 88, 95, 100, 110, 114, 120, 132, 150, 152, 165, 166, 176, 190, 200, 209, 220, 228, 240, 249, 264, 275, 285, 300, 304, 330, 332, 380, 400, 415, 418, 440, 456, 475, 498, 528, 550, 570, 600, 627, 660, 664, 760, 825, 830, 836, 880, 912, 913, 950, 996, 1045, 1100, 1140, 1200, 1245, 1254, 1320, 1328, 1425, 1520, 1577, 1650, 1660, 1672, 1826, 1900, 1992, 2075, 2090, 2200, 2280, 2490, 2508, 2640, 2739, 2850, 3135, 3154, 3300, 3320, 3344, 3652, 3800, 3984, 4150, 4180, 4400, 4560, 4565, 4731, 4980, 5016, 5225, 5478, 5700, 6225, 6270, 6308, 6600, 6640, 7304, 7600, 7885, 8300, 8360, 9130, 9462, 9960, 10032, 10450, 10956, 11400, 12450, 12540, 12616, 13200, 13695, 14608, 15675, 15770, 16600, 16720, 17347, 18260, 18924, 19920, 20900, 21912, 22800, 22825, 23655, 24900, 25080, 25232, 27390, 31350, 31540, 33200, 34694, 36520, 37848, 39425, 41800, 43824, 45650, 47310, 49800, 50160, 52041, 54780, 62700, 63080, 68475, 69388, 73040, 75696, 78850, 83600, 86735, 91300, 94620, 99600, 104082, 109560, 118275, 125400, 126160, 136950, 138776, 157700, 173470, 182600, 189240, 208164, 219120, 236550, 250800, 260205, 273900, 277552, 315400, 346940, 365200, 378480, 416328, 433675, 473100, 520410, 547800, 630800, 693880, 832656, 867350, 946200, 1040820, 1095600, 1301025, 1387760, 1734700, 1892400, 2081640, 2602050, 3469400, 4163280, 5204100, 6938800, 10408200, 20816400]

約数ペア:

[(1, 20816400), (2, 10408200), (3, 6938800), (4, 5204100), (5, 4163280), (6, 3469400), (8, 2602050), (10, 2081640), (11, 1892400), (12, 1734700), (15, 1387760), (16, 1301025), (19, 1095600), (20, 1040820), (22, 946200), (24, 867350), (25, 832656), (30, 693880), (33, 630800), (38, 547800), (40, 520410), (44, 473100), (48, 433675), (50, 416328), (55, 378480), (57, 365200), (60, 346940), (66, 315400), (75, 277552), (76, 273900), (80, 260205), (83, 250800), (88, 236550), (95, 219120), (100, 208164), (110, 189240), (114, 182600), (120, 173470), (132, 157700), (150, 138776), (152, 136950), (165, 126160), (166, 125400), (176, 118275), (190, 109560), (200, 104082), (209, 99600), (220, 94620), (228, 91300), (240, 86735), (249, 83600), (264, 78850), (275, 75696), (285, 73040), (300, 69388), (304, 68475), (330, 63080), (332, 62700), (380, 54780), (400, 52041), (415, 50160), (418, 49800), (440, 47310), (456, 45650), (475, 43824), (498, 41800), (528, 39425), (550, 37848), (570, 36520), (600, 34694), (627, 33200), (660, 31540), (664, 31350), (760, 27390), (825, 25232), (830, 25080), (836, 24900), (880, 23655), (912, 22825), (913, 22800), (950, 21912), (996, 20900), (1045, 19920), (1100, 18924), (1140, 18260), (1200, 17347), (1245, 16720), (1254, 16600), (1320, 15770), (1328, 15675), (1425, 14608), (1520, 13695), (1577, 13200), (1650, 12616), (1660, 12540), (1672, 12450), (1826, 11400), (1900, 10956), (1992, 10450), (2075, 10032), (2090, 9960), (2200, 9462), (2280, 9130), (2490, 8360), (2508, 8300), (2640, 7885), (2739, 7600), (2850, 7304), (3135, 6640), (3154, 6600), (3300, 6308), (3320, 6270), (3344, 6225), (3652, 5700), (3800, 5478), (3984, 5225), (4150, 5016), (4180, 4980), (4400, 4731), (4560, 4565)]