20713888

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1$

素因数の和:170

約数の個数: 96

約数和(自身を含む): 48580560

約数和(自身を除く): 27866672

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 29, 32, 34, 52, 58, 68, 101, 104, 116, 136, 202, 208, 221, 232, 272, 377, 404, 416, 442, 464, 493, 544, 754, 808, 884, 928, 986, 1313, 1508, 1616, 1717, 1768, 1972, 2626, 2929, 3016, 3232, 3434, 3536, 3944, 5252, 5858, 6032, 6409, 6868, 7072, 7888, 10504, 11716, 12064, 12818, 13736, 15776, 21008, 22321, 23432, 25636, 27472, 38077, 42016, 44642, 46864, 49793, 51272, 54944, 76154, 89284, 93728, 99586, 102544, 152308, 178568, 199172, 205088, 304616, 357136, 398344, 609232, 647309, 714272, 796688, 1218464, 1294618, 1593376, 2589236, 5178472, 10356944, 20713888]

約数ペア:

[(1, 20713888), (2, 10356944), (4, 5178472), (8, 2589236), (13, 1593376), (16, 1294618), (17, 1218464), (26, 796688), (29, 714272), (32, 647309), (34, 609232), (52, 398344), (58, 357136), (68, 304616), (101, 205088), (104, 199172), (116, 178568), (136, 152308), (202, 102544), (208, 99586), (221, 93728), (232, 89284), (272, 76154), (377, 54944), (404, 51272), (416, 49793), (442, 46864), (464, 44642), (493, 42016), (544, 38077), (754, 27472), (808, 25636), (884, 23432), (928, 22321), (986, 21008), (1313, 15776), (1508, 13736), (1616, 12818), (1717, 12064), (1768, 11716), (1972, 10504), (2626, 7888), (2929, 7072), (3016, 6868), (3232, 6409), (3434, 6032), (3536, 5858), (3944, 5252)]