81719000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:91

約数の個数: 256

約数和(自身を含む): 242611200

約数和(自身を除く): 160892200

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 19, 20, 22, 23, 25, 34, 38, 40, 44, 46, 50, 55, 68, 76, 85, 88, 92, 95, 100, 110, 115, 125, 136, 152, 170, 184, 187, 190, 200, 209, 220, 230, 250, 253, 275, 323, 340, 374, 380, 391, 418, 425, 437, 440, 460, 475, 500, 506, 550, 575, 646, 680, 748, 760, 782, 836, 850, 874, 920, 935, 950, 1000, 1012, 1045, 1100, 1150, 1265, 1292, 1375, 1496, 1564, 1615, 1672, 1700, 1748, 1870, 1900, 1955, 2024, 2090, 2125, 2185, 2200, 2300, 2375, 2530, 2584, 2750, 2875, 3128, 3230, 3400, 3496, 3553, 3740, 3800, 3910, 4180, 4250, 4301, 4370, 4600, 4675, 4750, 4807, 5060, 5225, 5500, 5750, 6325, 6460, 7106, 7429, 7480, 7820, 8075, 8360, 8500, 8602, 8740, 9350, 9500, 9614, 9775, 10120, 10450, 10925, 11000, 11500, 12650, 12920, 14212, 14858, 15640, 16150, 17000, 17204, 17480, 17765, 18700, 19000, 19228, 19550, 20900, 21505, 21850, 23000, 23375, 24035, 25300, 26125, 28424, 29716, 31625, 32300, 34408, 35530, 37145, 37400, 38456, 39100, 40375, 41800, 43010, 43700, 46750, 48070, 48875, 50600, 52250, 54625, 59432, 63250, 64600, 71060, 74290, 78200, 80750, 81719, 86020, 87400, 88825, 93500, 96140, 97750, 104500, 107525, 109250, 120175, 126500, 142120, 148580, 161500, 163438, 172040, 177650, 185725, 187000, 192280, 195500, 209000, 215050, 218500, 240350, 253000, 297160, 323000, 326876, 355300, 371450, 391000, 408595, 430100, 437000, 444125, 480700, 537625, 600875, 653752, 710600, 742900, 817190, 860200, 888250, 928625, 961400, 1075250, 1201750, 1485800, 1634380, 1776500, 1857250, 2042975, 2150500, 2403500, 3268760, 3553000, 3714500, 4085950, 4301000, 4807000, 7429000, 8171900, 10214875, 16343800, 20429750, 40859500, 81719000]

約数ペア:

[(1, 81719000), (2, 40859500), (4, 20429750), (5, 16343800), (8, 10214875), (10, 8171900), (11, 7429000), (17, 4807000), (19, 4301000), (20, 4085950), (22, 3714500), (23, 3553000), (25, 3268760), (34, 2403500), (38, 2150500), (40, 2042975), (44, 1857250), (46, 1776500), (50, 1634380), (55, 1485800), (68, 1201750), (76, 1075250), (85, 961400), (88, 928625), (92, 888250), (95, 860200), (100, 817190), (110, 742900), (115, 710600), (125, 653752), (136, 600875), (152, 537625), (170, 480700), (184, 444125), (187, 437000), (190, 430100), (200, 408595), (209, 391000), (220, 371450), (230, 355300), (250, 326876), (253, 323000), (275, 297160), (323, 253000), (340, 240350), (374, 218500), (380, 215050), (391, 209000), (418, 195500), (425, 192280), (437, 187000), (440, 185725), (460, 177650), (475, 172040), (500, 163438), (506, 161500), (550, 148580), (575, 142120), (646, 126500), (680, 120175), (748, 109250), (760, 107525), (782, 104500), (836, 97750), (850, 96140), (874, 93500), (920, 88825), (935, 87400), (950, 86020), (1000, 81719), (1012, 80750), (1045, 78200), (1100, 74290), (1150, 71060), (1265, 64600), (1292, 63250), (1375, 59432), (1496, 54625), (1564, 52250), (1615, 50600), (1672, 48875), (1700, 48070), (1748, 46750), (1870, 43700), (1900, 43010), (1955, 41800), (2024, 40375), (2090, 39100), (2125, 38456), (2185, 37400), (2200, 37145), (2300, 35530), (2375, 34408), (2530, 32300), (2584, 31625), (2750, 29716), (2875, 28424), (3128, 26125), (3230, 25300), (3400, 24035), (3496, 23375), (3553, 23000), (3740, 21850), (3800, 21505), (3910, 20900), (4180, 19550), (4250, 19228), (4301, 19000), (4370, 18700), (4600, 17765), (4675, 17480), (4750, 17204), (4807, 17000), (5060, 16150), (5225, 15640), (5500, 14858), (5750, 14212), (6325, 12920), (6460, 12650), (7106, 11500), (7429, 11000), (7480, 10925), (7820, 10450), (8075, 10120), (8360, 9775), (8500, 9614), (8602, 9500), (8740, 9350)]