16478728

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 37296000

約数和(自身を除く): 20817272

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 73, 116, 139, 146, 203, 232, 278, 292, 406, 511, 556, 584, 812, 973, 1022, 1112, 1624, 1946, 2044, 2117, 3892, 4031, 4088, 4234, 7784, 8062, 8468, 10147, 14819, 16124, 16936, 20294, 28217, 29638, 32248, 40588, 56434, 59276, 71029, 81176, 112868, 118552, 142058, 225736, 284116, 294263, 568232, 588526, 1177052, 2059841, 2354104, 4119682, 8239364, 16478728]

約数ペア:

[(1, 16478728), (2, 8239364), (4, 4119682), (7, 2354104), (8, 2059841), (14, 1177052), (28, 588526), (29, 568232), (56, 294263), (58, 284116), (73, 225736), (116, 142058), (139, 118552), (146, 112868), (203, 81176), (232, 71029), (278, 59276), (292, 56434), (406, 40588), (511, 32248), (556, 29638), (584, 28217), (812, 20294), (973, 16936), (1022, 16124), (1112, 14819), (1624, 10147), (1946, 8468), (2044, 8062), (2117, 7784), (3892, 4234), (4031, 4088)]