287408

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:113

約数の個数: 40

約数和(自身を含む): 642816

約数和(自身を除く): 355408

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 44, 46, 71, 88, 92, 142, 176, 184, 253, 284, 368, 506, 568, 781, 1012, 1136, 1562, 1633, 2024, 3124, 3266, 4048, 6248, 6532, 12496, 13064, 17963, 26128, 35926, 71852, 143704, 287408]

約数ペア:

[(1, 287408), (2, 143704), (4, 71852), (8, 35926), (11, 26128), (16, 17963), (22, 13064), (23, 12496), (44, 6532), (46, 6248), (71, 4048), (88, 3266), (92, 3124), (142, 2024), (176, 1633), (184, 1562), (253, 1136), (284, 1012), (368, 781), (506, 568)]