18638672

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:208

約数の個数: 60

約数和(自身を含む): 40096764

約数和(自身を除く): 21458092

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 61, 104, 113, 122, 169, 208, 226, 244, 338, 452, 488, 676, 793, 904, 976, 1352, 1469, 1586, 1808, 2704, 2938, 3172, 5876, 6344, 6893, 10309, 11752, 12688, 13786, 19097, 20618, 23504, 27572, 38194, 41236, 55144, 76388, 82472, 89609, 110288, 152776, 164944, 179218, 305552, 358436, 716872, 1164917, 1433744, 2329834, 4659668, 9319336, 18638672]

約数ペア:

[(1, 18638672), (2, 9319336), (4, 4659668), (8, 2329834), (13, 1433744), (16, 1164917), (26, 716872), (52, 358436), (61, 305552), (104, 179218), (113, 164944), (122, 152776), (169, 110288), (208, 89609), (226, 82472), (244, 76388), (338, 55144), (452, 41236), (488, 38194), (676, 27572), (793, 23504), (904, 20618), (976, 19097), (1352, 13786), (1469, 12688), (1586, 11752), (1808, 10309), (2704, 6893), (2938, 6344), (3172, 5876)]