81620224

素因数分解:

$2^8\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1231}}^1$

素因数の和:1291

約数の個数: 72

約数和(自身を含む): 191383808

約数和(自身を除く): 109763584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 64, 74, 112, 128, 148, 224, 256, 259, 296, 448, 518, 592, 896, 1036, 1184, 1231, 1792, 2072, 2368, 2462, 4144, 4736, 4924, 8288, 8617, 9472, 9848, 16576, 17234, 19696, 33152, 34468, 39392, 45547, 66304, 68936, 78784, 91094, 137872, 157568, 182188, 275744, 315136, 318829, 364376, 551488, 637658, 728752, 1102976, 1275316, 1457504, 2205952, 2550632, 2915008, 5101264, 5830016, 10202528, 11660032, 20405056, 40810112, 81620224]

約数ペア:

[(1, 81620224), (2, 40810112), (4, 20405056), (7, 11660032), (8, 10202528), (14, 5830016), (16, 5101264), (28, 2915008), (32, 2550632), (37, 2205952), (56, 1457504), (64, 1275316), (74, 1102976), (112, 728752), (128, 637658), (148, 551488), (224, 364376), (256, 318829), (259, 315136), (296, 275744), (448, 182188), (518, 157568), (592, 137872), (896, 91094), (1036, 78784), (1184, 68936), (1231, 66304), (1792, 45547), (2072, 39392), (2368, 34468), (2462, 33152), (4144, 19696), (4736, 17234), (4924, 16576), (8288, 9848), (8617, 9472)]