20597888

素因数分解:

$2^7\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:253

約数の個数: 64

約数和(自身を含む): 44064000

約数和(自身を除く): 23466112

約数列:

[1, 2, 4, 8, 16, 29, 31, 32, 58, 62, 64, 116, 124, 128, 179, 232, 248, 358, 464, 496, 716, 899, 928, 992, 1432, 1798, 1856, 1984, 2864, 3596, 3712, 3968, 5191, 5549, 5728, 7192, 10382, 11098, 11456, 14384, 20764, 22196, 22912, 28768, 41528, 44392, 57536, 83056, 88784, 115072, 160921, 166112, 177568, 321842, 332224, 355136, 643684, 664448, 710272, 1287368, 2574736, 5149472, 10298944, 20597888]

約数ペア:

[(1, 20597888), (2, 10298944), (4, 5149472), (8, 2574736), (16, 1287368), (29, 710272), (31, 664448), (32, 643684), (58, 355136), (62, 332224), (64, 321842), (116, 177568), (124, 166112), (128, 160921), (179, 115072), (232, 88784), (248, 83056), (358, 57536), (464, 44392), (496, 41528), (716, 28768), (899, 22912), (928, 22196), (992, 20764), (1432, 14384), (1798, 11456), (1856, 11098), (1984, 10382), (2864, 7192), (3596, 5728), (3712, 5549), (3968, 5191)]