204151920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{887}}^1$

素因数の和:1047

約数の個数: 160

約数和(自身を含む): 729381888

約数和(自身を除く): 525229968

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 137, 140, 168, 210, 240, 274, 280, 336, 411, 420, 548, 560, 685, 822, 840, 887, 959, 1096, 1370, 1644, 1680, 1774, 1918, 2055, 2192, 2661, 2740, 2877, 3288, 3548, 3836, 4110, 4435, 4795, 5322, 5480, 5754, 6209, 6576, 7096, 7672, 8220, 8870, 9590, 10644, 10960, 11508, 12418, 13305, 14192, 14385, 15344, 16440, 17740, 18627, 19180, 21288, 23016, 24836, 26610, 28770, 31045, 32880, 35480, 37254, 38360, 42576, 46032, 49672, 53220, 57540, 62090, 70960, 74508, 76720, 93135, 99344, 106440, 115080, 121519, 124180, 149016, 186270, 212880, 230160, 243038, 248360, 298032, 364557, 372540, 486076, 496720, 607595, 729114, 745080, 850633, 972152, 1215190, 1458228, 1490160, 1701266, 1822785, 1944304, 2430380, 2551899, 2916456, 3402532, 3645570, 4253165, 4860760, 5103798, 5832912, 6805064, 7291140, 8506330, 9721520, 10207596, 12759495, 13610128, 14582280, 17012660, 20415192, 25518990, 29164560, 34025320, 40830384, 51037980, 68050640, 102075960, 204151920]

約数ペア:

[(1, 204151920), (2, 102075960), (3, 68050640), (4, 51037980), (5, 40830384), (6, 34025320), (7, 29164560), (8, 25518990), (10, 20415192), (12, 17012660), (14, 14582280), (15, 13610128), (16, 12759495), (20, 10207596), (21, 9721520), (24, 8506330), (28, 7291140), (30, 6805064), (35, 5832912), (40, 5103798), (42, 4860760), (48, 4253165), (56, 3645570), (60, 3402532), (70, 2916456), (80, 2551899), (84, 2430380), (105, 1944304), (112, 1822785), (120, 1701266), (137, 1490160), (140, 1458228), (168, 1215190), (210, 972152), (240, 850633), (274, 745080), (280, 729114), (336, 607595), (411, 496720), (420, 486076), (548, 372540), (560, 364557), (685, 298032), (822, 248360), (840, 243038), (887, 230160), (959, 212880), (1096, 186270), (1370, 149016), (1644, 124180), (1680, 121519), (1774, 115080), (1918, 106440), (2055, 99344), (2192, 93135), (2661, 76720), (2740, 74508), (2877, 70960), (3288, 62090), (3548, 57540), (3836, 53220), (4110, 49672), (4435, 46032), (4795, 42576), (5322, 38360), (5480, 37254), (5754, 35480), (6209, 32880), (6576, 31045), (7096, 28770), (7672, 26610), (8220, 24836), (8870, 23016), (9590, 21288), (10644, 19180), (10960, 18627), (11508, 17740), (12418, 16440), (13305, 15344), (14192, 14385)]