28008656

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^2$

素因数の和:216

約数の個数: 60

約数和(自身を含む): 62581932

約数和(自身を除く): 34573276

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 89, 104, 136, 178, 208, 221, 272, 356, 442, 712, 884, 1157, 1424, 1513, 1768, 2314, 3026, 3536, 4628, 6052, 7921, 9256, 12104, 15842, 18512, 19669, 24208, 31684, 39338, 63368, 78676, 102973, 126736, 134657, 157352, 205946, 269314, 314704, 411892, 538628, 823784, 1077256, 1647568, 1750541, 2154512, 3501082, 7002164, 14004328, 28008656]

約数ペア:

[(1, 28008656), (2, 14004328), (4, 7002164), (8, 3501082), (13, 2154512), (16, 1750541), (17, 1647568), (26, 1077256), (34, 823784), (52, 538628), (68, 411892), (89, 314704), (104, 269314), (136, 205946), (178, 157352), (208, 134657), (221, 126736), (272, 102973), (356, 78676), (442, 63368), (712, 39338), (884, 31684), (1157, 24208), (1424, 19669), (1513, 18512), (1768, 15842), (2314, 12104), (3026, 9256), (3536, 7921), (4628, 6052)]