19553408

素因数分解:

$2^7\times 7^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:317

約数の個数: 64

約数和(自身を含む): 45124800

約数和(自身を除く): 25571392

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 139, 157, 224, 278, 314, 448, 556, 628, 896, 973, 1099, 1112, 1256, 1946, 2198, 2224, 2512, 3892, 4396, 4448, 5024, 7784, 8792, 8896, 10048, 15568, 17584, 17792, 20096, 21823, 31136, 35168, 43646, 62272, 70336, 87292, 124544, 140672, 152761, 174584, 305522, 349168, 611044, 698336, 1222088, 1396672, 2444176, 2793344, 4888352, 9776704, 19553408]

約数ペア:

[(1, 19553408), (2, 9776704), (4, 4888352), (7, 2793344), (8, 2444176), (14, 1396672), (16, 1222088), (28, 698336), (32, 611044), (56, 349168), (64, 305522), (112, 174584), (128, 152761), (139, 140672), (157, 124544), (224, 87292), (278, 70336), (314, 62272), (448, 43646), (556, 35168), (628, 31136), (896, 21823), (973, 20096), (1099, 17792), (1112, 17584), (1256, 15568), (1946, 10048), (2198, 8896), (2224, 8792), (2512, 7784), (3892, 5024), (4396, 4448)]