20870144

素因数分解:

$2^{10}\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:338

約数の個数: 44

約数和(自身を含む): 42372900

約数和(自身を除く): 21502756

約数列:

[1, 2, 4, 8, 16, 32, 64, 89, 128, 178, 229, 256, 356, 458, 512, 712, 916, 1024, 1424, 1832, 2848, 3664, 5696, 7328, 11392, 14656, 20381, 22784, 29312, 40762, 45568, 58624, 81524, 91136, 117248, 163048, 234496, 326096, 652192, 1304384, 2608768, 5217536, 10435072, 20870144]

約数ペア:

[(1, 20870144), (2, 10435072), (4, 5217536), (8, 2608768), (16, 1304384), (32, 652192), (64, 326096), (89, 234496), (128, 163048), (178, 117248), (229, 91136), (256, 81524), (356, 58624), (458, 45568), (512, 40762), (712, 29312), (916, 22784), (1024, 20381), (1424, 14656), (1832, 11392), (2848, 7328), (3664, 5696)]