20463436.000000000

素因数分解:

$2^7\times 7^1\times {\mathrm{283}}^1\times {\mathrm{401}}^1$

素因数の和:705

約数の個数: 64

約数和(自身を含む): 232902720

約数和(自身を除く): 131221952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 283, 401, 448, 566, 802, 896, 1132, 1604, 1981, 2264, 2807, 3208, 3962, 4528, 5614, 6416, 7924, 9056, 11228, 12832, 15848, 18112, 22456, 25664, 31696, 36224, 44912, 51328, 63392, 89824, 113483, 126784, 179648, 226966, 253568, 359296, 453932, 794381, 907864, 1588762, 1815728, 3177524, 3631456, 6355048, 7262912, 12710096, 14525824, 25420192, 50840384, 101680768]

約数ペア:

[(1, 101680768), (2, 50840384), (4, 25420192), (7, 14525824), (8, 12710096), (14, 7262912), (16, 6355048), (28, 3631456), (32, 3177524), (56, 1815728), (64, 1588762), (112, 907864), (128, 794381), (224, 453932), (283, 359296), (401, 253568), (448, 226966), (566, 179648), (802, 126784), (896, 113483), (1132, 89824), (1604, 63392), (1981, 51328), (2264, 44912), (2807, 36224), (3208, 31696), (3962, 25664), (4528, 22456), (5614, 18112), (6416, 15848), (7924, 12832), (9056, 11228)]