20402847740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{859}}^1\times {\mathrm{1009}}^1$

素因数の和:1995

約数の個数: 96

約数和(自身を含む): 47279635200

約数和(自身を除く): 26876787460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 107, 110, 214, 220, 428, 535, 859, 1009, 1070, 1177, 1718, 2018, 2140, 2354, 3436, 4036, 4295, 4708, 5045, 5885, 8590, 9449, 10090, 11099, 11770, 17180, 18898, 20180, 22198, 23540, 37796, 44396, 47245, 55495, 91913, 94490, 107963, 110990, 183826, 188980, 215926, 221980, 367652, 431852, 459565, 539815, 866731, 919130, 1011043, 1079630, 1187593, 1733462, 1838260, 2022086, 2159260, 2375186, 3466924, 4044172, 4333655, 4750372, 5055215, 5937965, 8667310, 9534041, 10110430, 11875930, 17334620, 19068082, 20220860, 23751860, 38136164, 47670205, 92740217, 95340410, 185480434, 190680820, 370960868, 463701085, 927402170, 1020142387, 1854804340, 2040284774, 4080569548, 5100711935, 10201423870, 20402847740]

約数ペア:

[(1, 20402847740), (2, 10201423870), (4, 5100711935), (5, 4080569548), (10, 2040284774), (11, 1854804340), (20, 1020142387), (22, 927402170), (44, 463701085), (55, 370960868), (107, 190680820), (110, 185480434), (214, 95340410), (220, 92740217), (428, 47670205), (535, 38136164), (859, 23751860), (1009, 20220860), (1070, 19068082), (1177, 17334620), (1718, 11875930), (2018, 10110430), (2140, 9534041), (2354, 8667310), (3436, 5937965), (4036, 5055215), (4295, 4750372), (4708, 4333655), (5045, 4044172), (5885, 3466924), (8590, 2375186), (9449, 2159260), (10090, 2022086), (11099, 1838260), (11770, 1733462), (17180, 1187593), (18898, 1079630), (20180, 1011043), (22198, 919130), (23540, 866731), (37796, 539815), (44396, 459565), (47245, 431852), (55495, 367652), (91913, 221980), (94490, 215926), (107963, 188980), (110990, 183826)]