639430193744

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{8779}}^1\times {\mathrm{111031}}^1$

素因数の和:119859

約数の個数: 40

約数和(自身を含む): 1269268969920

約数和(自身を除く): 629838776176

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 8779, 17558, 35116, 70232, 111031, 140464, 222062, 359939, 444124, 719878, 888248, 1439756, 1776496, 2879512, 4552271, 5759024, 9104542, 18209084, 36418168, 72836336, 974741149, 1949482298, 3898964596, 7797929192, 15595858384, 39964387109, 79928774218, 159857548436, 319715096872, 639430193744]

約数ペア:

[(1, 639430193744), (2, 319715096872), (4, 159857548436), (8, 79928774218), (16, 39964387109), (41, 15595858384), (82, 7797929192), (164, 3898964596), (328, 1949482298), (656, 974741149), (8779, 72836336), (17558, 36418168), (35116, 18209084), (70232, 9104542), (111031, 5759024), (140464, 4552271), (222062, 2879512), (359939, 1776496), (444124, 1439756), (719878, 888248)]