19803000

素因数分解:

$2^3\times 3^1\times 5^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:95

約数の個数: 256

約数和(自身を含む): 75479040

約数和(自身を除く): 55676040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 25, 28, 30, 35, 40, 41, 42, 46, 50, 56, 60, 69, 70, 75, 82, 84, 92, 100, 105, 115, 120, 123, 125, 138, 140, 150, 161, 164, 168, 175, 184, 200, 205, 210, 230, 246, 250, 276, 280, 287, 300, 322, 328, 345, 350, 375, 410, 420, 460, 483, 492, 500, 525, 552, 574, 575, 600, 615, 644, 690, 700, 750, 805, 820, 840, 861, 875, 920, 943, 966, 984, 1000, 1025, 1050, 1148, 1150, 1230, 1288, 1380, 1400, 1435, 1500, 1610, 1640, 1722, 1725, 1750, 1886, 1932, 2050, 2100, 2296, 2300, 2415, 2460, 2625, 2760, 2829, 2870, 2875, 3000, 3075, 3220, 3444, 3450, 3500, 3772, 3864, 4025, 4100, 4200, 4305, 4600, 4715, 4830, 4920, 5125, 5250, 5658, 5740, 5750, 6150, 6440, 6601, 6888, 6900, 7000, 7175, 7544, 8050, 8200, 8610, 8625, 9430, 9660, 10250, 10500, 11316, 11480, 11500, 12075, 12300, 13202, 13800, 14145, 14350, 15375, 16100, 17220, 17250, 18860, 19320, 19803, 20125, 20500, 21000, 21525, 22632, 23000, 23575, 24150, 24600, 26404, 28290, 28700, 30750, 32200, 33005, 34440, 34500, 35875, 37720, 39606, 40250, 41000, 43050, 47150, 48300, 52808, 56580, 57400, 60375, 61500, 66010, 69000, 70725, 71750, 79212, 80500, 86100, 94300, 96600, 99015, 107625, 113160, 117875, 120750, 123000, 132020, 141450, 143500, 158424, 161000, 165025, 172200, 188600, 198030, 215250, 235750, 241500, 264040, 282900, 287000, 330050, 353625, 396060, 430500, 471500, 483000, 495075, 565800, 660100, 707250, 792120, 825125, 861000, 943000, 990150, 1320200, 1414500, 1650250, 1980300, 2475375, 2829000, 3300500, 3960600, 4950750, 6601000, 9901500, 19803000]

約数ペア:

[(1, 19803000), (2, 9901500), (3, 6601000), (4, 4950750), (5, 3960600), (6, 3300500), (7, 2829000), (8, 2475375), (10, 1980300), (12, 1650250), (14, 1414500), (15, 1320200), (20, 990150), (21, 943000), (23, 861000), (24, 825125), (25, 792120), (28, 707250), (30, 660100), (35, 565800), (40, 495075), (41, 483000), (42, 471500), (46, 430500), (50, 396060), (56, 353625), (60, 330050), (69, 287000), (70, 282900), (75, 264040), (82, 241500), (84, 235750), (92, 215250), (100, 198030), (105, 188600), (115, 172200), (120, 165025), (123, 161000), (125, 158424), (138, 143500), (140, 141450), (150, 132020), (161, 123000), (164, 120750), (168, 117875), (175, 113160), (184, 107625), (200, 99015), (205, 96600), (210, 94300), (230, 86100), (246, 80500), (250, 79212), (276, 71750), (280, 70725), (287, 69000), (300, 66010), (322, 61500), (328, 60375), (345, 57400), (350, 56580), (375, 52808), (410, 48300), (420, 47150), (460, 43050), (483, 41000), (492, 40250), (500, 39606), (525, 37720), (552, 35875), (574, 34500), (575, 34440), (600, 33005), (615, 32200), (644, 30750), (690, 28700), (700, 28290), (750, 26404), (805, 24600), (820, 24150), (840, 23575), (861, 23000), (875, 22632), (920, 21525), (943, 21000), (966, 20500), (984, 20125), (1000, 19803), (1025, 19320), (1050, 18860), (1148, 17250), (1150, 17220), (1230, 16100), (1288, 15375), (1380, 14350), (1400, 14145), (1435, 13800), (1500, 13202), (1610, 12300), (1640, 12075), (1722, 11500), (1725, 11480), (1750, 11316), (1886, 10500), (1932, 10250), (2050, 9660), (2100, 9430), (2296, 8625), (2300, 8610), (2415, 8200), (2460, 8050), (2625, 7544), (2760, 7175), (2829, 7000), (2870, 6900), (2875, 6888), (3000, 6601), (3075, 6440), (3220, 6150), (3444, 5750), (3450, 5740), (3500, 5658), (3772, 5250), (3864, 5125), (4025, 4920), (4100, 4830), (4200, 4715), (4305, 4600)]