19984800

素因数分解:

$2^5\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{757}}^1$

素因数の和:791

約数の個数: 144

約数和(自身を含む): 71057952

約数和(自身を除く): 51073152

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 25, 30, 32, 33, 40, 44, 48, 50, 55, 60, 66, 75, 80, 88, 96, 100, 110, 120, 132, 150, 160, 165, 176, 200, 220, 240, 264, 275, 300, 330, 352, 400, 440, 480, 528, 550, 600, 660, 757, 800, 825, 880, 1056, 1100, 1200, 1320, 1514, 1650, 1760, 2200, 2271, 2400, 2640, 3028, 3300, 3785, 4400, 4542, 5280, 6056, 6600, 7570, 8327, 8800, 9084, 11355, 12112, 13200, 15140, 16654, 18168, 18925, 22710, 24224, 24981, 26400, 30280, 33308, 36336, 37850, 41635, 45420, 49962, 56775, 60560, 66616, 72672, 75700, 83270, 90840, 99924, 113550, 121120, 124905, 133232, 151400, 166540, 181680, 199848, 208175, 227100, 249810, 266464, 302800, 333080, 363360, 399696, 416350, 454200, 499620, 605600, 624525, 666160, 799392, 832700, 908400, 999240, 1249050, 1332320, 1665400, 1816800, 1998480, 2498100, 3330800, 3996960, 4996200, 6661600, 9992400, 19984800]

約数ペア:

[(1, 19984800), (2, 9992400), (3, 6661600), (4, 4996200), (5, 3996960), (6, 3330800), (8, 2498100), (10, 1998480), (11, 1816800), (12, 1665400), (15, 1332320), (16, 1249050), (20, 999240), (22, 908400), (24, 832700), (25, 799392), (30, 666160), (32, 624525), (33, 605600), (40, 499620), (44, 454200), (48, 416350), (50, 399696), (55, 363360), (60, 333080), (66, 302800), (75, 266464), (80, 249810), (88, 227100), (96, 208175), (100, 199848), (110, 181680), (120, 166540), (132, 151400), (150, 133232), (160, 124905), (165, 121120), (176, 113550), (200, 99924), (220, 90840), (240, 83270), (264, 75700), (275, 72672), (300, 66616), (330, 60560), (352, 56775), (400, 49962), (440, 45420), (480, 41635), (528, 37850), (550, 36336), (600, 33308), (660, 30280), (757, 26400), (800, 24981), (825, 24224), (880, 22710), (1056, 18925), (1100, 18168), (1200, 16654), (1320, 15140), (1514, 13200), (1650, 12112), (1760, 11355), (2200, 9084), (2271, 8800), (2400, 8327), (2640, 7570), (3028, 6600), (3300, 6056), (3785, 5280), (4400, 4542)]