20585344

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 44982000

約数和(自身を除く): 24396656

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 89, 104, 128, 139, 178, 208, 278, 356, 416, 556, 712, 832, 1112, 1157, 1424, 1664, 1807, 2224, 2314, 2848, 3614, 4448, 4628, 5696, 7228, 8896, 9256, 11392, 12371, 14456, 17792, 18512, 24742, 28912, 37024, 49484, 57824, 74048, 98968, 115648, 148096, 160823, 197936, 231296, 321646, 395872, 643292, 791744, 1286584, 1583488, 2573168, 5146336, 10292672, 20585344]

約数ペア:

[(1, 20585344), (2, 10292672), (4, 5146336), (8, 2573168), (13, 1583488), (16, 1286584), (26, 791744), (32, 643292), (52, 395872), (64, 321646), (89, 231296), (104, 197936), (128, 160823), (139, 148096), (178, 115648), (208, 98968), (278, 74048), (356, 57824), (416, 49484), (556, 37024), (712, 28912), (832, 24742), (1112, 18512), (1157, 17792), (1424, 14456), (1664, 12371), (1807, 11392), (2224, 9256), (2314, 8896), (2848, 7228), (3614, 5696), (4448, 4628)]