20199754900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{196687}}^1$

素因数の和:196793

約数の個数: 72

約数和(自身を含む): 47803051520

約数和(自身を除く): 27603296620

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 79, 100, 130, 158, 260, 316, 325, 395, 650, 790, 1027, 1300, 1580, 1975, 2054, 3950, 4108, 5135, 7900, 10270, 20540, 25675, 51350, 102700, 196687, 393374, 786748, 983435, 1966870, 2556931, 3933740, 4917175, 5113862, 9834350, 10227724, 12784655, 15538273, 19668700, 25569310, 31076546, 51138620, 62153092, 63923275, 77691365, 127846550, 155382730, 201997549, 255693100, 310765460, 388456825, 403995098, 776913650, 807990196, 1009987745, 1553827300, 2019975490, 4039950980, 5049938725, 10099877450, 20199754900]

約数ペア:

[(1, 20199754900), (2, 10099877450), (4, 5049938725), (5, 4039950980), (10, 2019975490), (13, 1553827300), (20, 1009987745), (25, 807990196), (26, 776913650), (50, 403995098), (52, 388456825), (65, 310765460), (79, 255693100), (100, 201997549), (130, 155382730), (158, 127846550), (260, 77691365), (316, 63923275), (325, 62153092), (395, 51138620), (650, 31076546), (790, 25569310), (1027, 19668700), (1300, 15538273), (1580, 12784655), (1975, 10227724), (2054, 9834350), (3950, 5113862), (4108, 4917175), (5135, 3933740), (7900, 2556931), (10270, 1966870), (20540, 983435), (25675, 786748), (51350, 393374), (102700, 196687)]