20106487904

素因数分解:

$2^5\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{431}}^1$

素因数の和:581

約数の個数: 144

約数和(自身を含む): 43132678848

約数和(自身を除く): 23026190944

約数列:

[1, 2, 4, 8, 16, 31, 32, 37, 41, 62, 74, 82, 124, 148, 164, 248, 296, 328, 431, 496, 592, 656, 862, 961, 992, 1147, 1184, 1271, 1312, 1517, 1724, 1922, 2294, 2542, 3034, 3448, 3844, 4588, 5084, 6068, 6896, 7688, 9176, 10168, 12136, 13361, 13792, 15376, 15947, 17671, 18352, 20336, 24272, 26722, 30752, 31894, 35342, 35557, 36704, 39401, 40672, 47027, 48544, 53444, 63788, 70684, 71114, 78802, 94054, 106888, 127576, 141368, 142228, 157604, 188108, 213776, 255152, 282736, 284456, 315208, 376216, 414191, 427552, 494357, 510304, 547801, 565472, 568912, 630416, 653827, 752432, 828382, 988714, 1095602, 1137824, 1260832, 1307654, 1457837, 1504864, 1656764, 1977428, 2191204, 2615308, 2915674, 3313528, 3954856, 4382408, 5230616, 5831348, 6627056, 7909712, 8764816, 10461232, 11662696, 13254112, 15325067, 15819424, 16981831, 17529632, 20268637, 20922464, 23325392, 30650134, 33963662, 40537274, 46650784, 61300268, 67927324, 81074548, 122600536, 135854648, 162149096, 245201072, 271709296, 324298192, 490402144, 543418592, 628327747, 648596384, 1256655494, 2513310988, 5026621976, 10053243952, 20106487904]

約数ペア:

[(1, 20106487904), (2, 10053243952), (4, 5026621976), (8, 2513310988), (16, 1256655494), (31, 648596384), (32, 628327747), (37, 543418592), (41, 490402144), (62, 324298192), (74, 271709296), (82, 245201072), (124, 162149096), (148, 135854648), (164, 122600536), (248, 81074548), (296, 67927324), (328, 61300268), (431, 46650784), (496, 40537274), (592, 33963662), (656, 30650134), (862, 23325392), (961, 20922464), (992, 20268637), (1147, 17529632), (1184, 16981831), (1271, 15819424), (1312, 15325067), (1517, 13254112), (1724, 11662696), (1922, 10461232), (2294, 8764816), (2542, 7909712), (3034, 6627056), (3448, 5831348), (3844, 5230616), (4588, 4382408), (5084, 3954856), (6068, 3313528), (6896, 2915674), (7688, 2615308), (9176, 2191204), (10168, 1977428), (12136, 1656764), (13361, 1504864), (13792, 1457837), (15376, 1307654), (15947, 1260832), (17671, 1137824), (18352, 1095602), (20336, 988714), (24272, 828382), (26722, 752432), (30752, 653827), (31894, 630416), (35342, 568912), (35557, 565472), (36704, 547801), (39401, 510304), (40672, 494357), (47027, 427552), (48544, 414191), (53444, 376216), (63788, 315208), (70684, 284456), (71114, 282736), (78802, 255152), (94054, 213776), (106888, 188108), (127576, 157604), (141368, 142228)]