20512400272

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{139487}}^1$

素因数の和:139616

約数の個数: 80

約数和(自身を含む): 49398838272

約数和(自身を除く): 28886438000

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 101, 104, 112, 182, 202, 208, 364, 404, 707, 728, 808, 1313, 1414, 1456, 1616, 2626, 2828, 5252, 5656, 9191, 10504, 11312, 18382, 21008, 36764, 73528, 139487, 147056, 278974, 557948, 976409, 1115896, 1813331, 1952818, 2231792, 3626662, 3905636, 7253324, 7811272, 12693317, 14088187, 14506648, 15622544, 25386634, 28176374, 29013296, 50773268, 56352748, 98617309, 101546536, 112705496, 183146431, 197234618, 203093072, 225410992, 366292862, 394469236, 732585724, 788938472, 1282025017, 1465171448, 1577876944, 2564050034, 2930342896, 5128100068, 10256200136, 20512400272]

約数ペア:

[(1, 20512400272), (2, 10256200136), (4, 5128100068), (7, 2930342896), (8, 2564050034), (13, 1577876944), (14, 1465171448), (16, 1282025017), (26, 788938472), (28, 732585724), (52, 394469236), (56, 366292862), (91, 225410992), (101, 203093072), (104, 197234618), (112, 183146431), (182, 112705496), (202, 101546536), (208, 98617309), (364, 56352748), (404, 50773268), (707, 29013296), (728, 28176374), (808, 25386634), (1313, 15622544), (1414, 14506648), (1456, 14088187), (1616, 12693317), (2626, 7811272), (2828, 7253324), (5252, 3905636), (5656, 3626662), (9191, 2231792), (10504, 1952818), (11312, 1813331), (18382, 1115896), (21008, 976409), (36764, 557948), (73528, 278974), (139487, 147056)]