19604000

素因数分解:

$2^5\times 5^3\times {\mathrm{13}}^2\times {\mathrm{29}}^1$

素因数の和:80

約数の個数: 144

約数和(自身を含む): 53955720

約数和(自身を除く): 34351720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 29, 32, 40, 50, 52, 58, 65, 80, 100, 104, 116, 125, 130, 145, 160, 169, 200, 208, 232, 250, 260, 290, 325, 338, 377, 400, 416, 464, 500, 520, 580, 650, 676, 725, 754, 800, 845, 928, 1000, 1040, 1160, 1300, 1352, 1450, 1508, 1625, 1690, 1885, 2000, 2080, 2320, 2600, 2704, 2900, 3016, 3250, 3380, 3625, 3770, 4000, 4225, 4640, 4901, 5200, 5408, 5800, 6032, 6500, 6760, 7250, 7540, 8450, 9425, 9802, 10400, 11600, 12064, 13000, 13520, 14500, 15080, 16900, 18850, 19604, 21125, 23200, 24505, 26000, 27040, 29000, 30160, 33800, 37700, 39208, 42250, 47125, 49010, 52000, 58000, 60320, 67600, 75400, 78416, 84500, 94250, 98020, 116000, 122525, 135200, 150800, 156832, 169000, 188500, 196040, 245050, 301600, 338000, 377000, 392080, 490100, 612625, 676000, 754000, 784160, 980200, 1225250, 1508000, 1960400, 2450500, 3920800, 4901000, 9802000, 19604000]

約数ペア:

[(1, 19604000), (2, 9802000), (4, 4901000), (5, 3920800), (8, 2450500), (10, 1960400), (13, 1508000), (16, 1225250), (20, 980200), (25, 784160), (26, 754000), (29, 676000), (32, 612625), (40, 490100), (50, 392080), (52, 377000), (58, 338000), (65, 301600), (80, 245050), (100, 196040), (104, 188500), (116, 169000), (125, 156832), (130, 150800), (145, 135200), (160, 122525), (169, 116000), (200, 98020), (208, 94250), (232, 84500), (250, 78416), (260, 75400), (290, 67600), (325, 60320), (338, 58000), (377, 52000), (400, 49010), (416, 47125), (464, 42250), (500, 39208), (520, 37700), (580, 33800), (650, 30160), (676, 29000), (725, 27040), (754, 26000), (800, 24505), (845, 23200), (928, 21125), (1000, 19604), (1040, 18850), (1160, 16900), (1300, 15080), (1352, 14500), (1450, 13520), (1508, 13000), (1625, 12064), (1690, 11600), (1885, 10400), (2000, 9802), (2080, 9425), (2320, 8450), (2600, 7540), (2704, 7250), (2900, 6760), (3016, 6500), (3250, 6032), (3380, 5800), (3625, 5408), (3770, 5200), (4000, 4901), (4225, 4640)]