19400576

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 42411600

約数和(自身を除く): 23011024

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 89, 104, 128, 131, 178, 208, 262, 356, 416, 524, 712, 832, 1048, 1157, 1424, 1664, 1703, 2096, 2314, 2848, 3406, 4192, 4628, 5696, 6812, 8384, 9256, 11392, 11659, 13624, 16768, 18512, 23318, 27248, 37024, 46636, 54496, 74048, 93272, 108992, 148096, 151567, 186544, 217984, 303134, 373088, 606268, 746176, 1212536, 1492352, 2425072, 4850144, 9700288, 19400576]

約数ペア:

[(1, 19400576), (2, 9700288), (4, 4850144), (8, 2425072), (13, 1492352), (16, 1212536), (26, 746176), (32, 606268), (52, 373088), (64, 303134), (89, 217984), (104, 186544), (128, 151567), (131, 148096), (178, 108992), (208, 93272), (262, 74048), (356, 54496), (416, 46636), (524, 37024), (712, 27248), (832, 23318), (1048, 18512), (1157, 16768), (1424, 13624), (1664, 11659), (1703, 11392), (2096, 9256), (2314, 8384), (2848, 6812), (3406, 5696), (4192, 4628)]