20553840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28547}}^1$

素因数の和:28566

約数の個数: 60

約数和(自身を含む): 69029064

約数和(自身を除く): 48475224

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28547, 57094, 85641, 114188, 142735, 171282, 228376, 256923, 285470, 342564, 428205, 456752, 513846, 570940, 685128, 856410, 1027692, 1141880, 1284615, 1370256, 1712820, 2055384, 2283760, 2569230, 3425640, 4110768, 5138460, 6851280, 10276920, 20553840]

約数ペア:

[(1, 20553840), (2, 10276920), (3, 6851280), (4, 5138460), (5, 4110768), (6, 3425640), (8, 2569230), (9, 2283760), (10, 2055384), (12, 1712820), (15, 1370256), (16, 1284615), (18, 1141880), (20, 1027692), (24, 856410), (30, 685128), (36, 570940), (40, 513846), (45, 456752), (48, 428205), (60, 342564), (72, 285470), (80, 256923), (90, 228376), (120, 171282), (144, 142735), (180, 114188), (240, 85641), (360, 57094), (720, 28547)]