20161792100

素因数分解:

$2^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{269}}^1\times {\mathrm{431}}^1$

素因数の和:798

約数の個数: 144

約数和(自身を含む): 46167045120

約数和(自身を除く): 26005253020

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 47, 50, 74, 94, 100, 148, 185, 188, 235, 269, 370, 431, 470, 538, 740, 862, 925, 940, 1076, 1175, 1345, 1724, 1739, 1850, 2155, 2350, 2690, 3478, 3700, 4310, 4700, 5380, 6725, 6956, 8620, 8695, 9953, 10775, 12643, 13450, 15947, 17390, 19906, 20257, 21550, 25286, 26900, 31894, 34780, 39812, 40514, 43100, 43475, 49765, 50572, 63215, 63788, 79735, 81028, 86950, 99530, 101285, 115939, 126430, 159470, 173900, 199060, 202570, 231878, 248825, 252860, 316075, 318940, 398675, 405140, 463756, 467791, 497650, 506425, 579695, 632150, 749509, 797350, 935582, 995300, 1012850, 1159390, 1264300, 1499018, 1594700, 1871164, 2025700, 2318780, 2338955, 2898475, 2998036, 3747545, 4289743, 4677910, 5449133, 5796950, 7495090, 8579486, 9355820, 10898266, 11593900, 11694775, 14990180, 17158972, 18737725, 21448715, 21796532, 23389550, 27245665, 37475450, 42897430, 46779100, 54491330, 74950900, 85794860, 107243575, 108982660, 136228325, 201617921, 214487150, 272456650, 403235842, 428974300, 544913300, 806471684, 1008089605, 2016179210, 4032358420, 5040448025, 10080896050, 20161792100]

約数ペア:

[(1, 20161792100), (2, 10080896050), (4, 5040448025), (5, 4032358420), (10, 2016179210), (20, 1008089605), (25, 806471684), (37, 544913300), (47, 428974300), (50, 403235842), (74, 272456650), (94, 214487150), (100, 201617921), (148, 136228325), (185, 108982660), (188, 107243575), (235, 85794860), (269, 74950900), (370, 54491330), (431, 46779100), (470, 42897430), (538, 37475450), (740, 27245665), (862, 23389550), (925, 21796532), (940, 21448715), (1076, 18737725), (1175, 17158972), (1345, 14990180), (1724, 11694775), (1739, 11593900), (1850, 10898266), (2155, 9355820), (2350, 8579486), (2690, 7495090), (3478, 5796950), (3700, 5449133), (4310, 4677910), (4700, 4289743), (5380, 3747545), (6725, 2998036), (6956, 2898475), (8620, 2338955), (8695, 2318780), (9953, 2025700), (10775, 1871164), (12643, 1594700), (13450, 1499018), (15947, 1264300), (17390, 1159390), (19906, 1012850), (20257, 995300), (21550, 935582), (25286, 797350), (26900, 749509), (31894, 632150), (34780, 579695), (39812, 506425), (40514, 497650), (43100, 467791), (43475, 463756), (49765, 405140), (50572, 398675), (63215, 318940), (63788, 316075), (79735, 252860), (81028, 248825), (86950, 231878), (99530, 202570), (101285, 199060), (115939, 173900), (126430, 159470)]