19440320

素因数分解:

$2^6\times 5^1\times {\mathrm{79}}^1\times {\mathrm{769}}^1$

素因数の和:865

約数の個数: 56

約数和(自身を含む): 46939200

約数和(自身を除く): 27498880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 158, 160, 316, 320, 395, 632, 769, 790, 1264, 1538, 1580, 2528, 3076, 3160, 3845, 5056, 6152, 6320, 7690, 12304, 12640, 15380, 24608, 25280, 30760, 49216, 60751, 61520, 121502, 123040, 243004, 246080, 303755, 486008, 607510, 972016, 1215020, 1944032, 2430040, 3888064, 4860080, 9720160, 19440320]

約数ペア:

[(1, 19440320), (2, 9720160), (4, 4860080), (5, 3888064), (8, 2430040), (10, 1944032), (16, 1215020), (20, 972016), (32, 607510), (40, 486008), (64, 303755), (79, 246080), (80, 243004), (158, 123040), (160, 121502), (316, 61520), (320, 60751), (395, 49216), (632, 30760), (769, 25280), (790, 24608), (1264, 15380), (1538, 12640), (1580, 12304), (2528, 7690), (3076, 6320), (3160, 6152), (3845, 5056)]