28379320

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4519}}^1$

素因数の和:4687

約数の個数: 32

約数和(自身を含む): 64274400

約数和(自身を除く): 35895080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 4519, 6280, 9038, 18076, 22595, 36152, 45190, 90380, 180760, 709483, 1418966, 2837932, 3547415, 5675864, 7094830, 14189660, 28379320]

約数ペア:

[(1, 28379320), (2, 14189660), (4, 7094830), (5, 5675864), (8, 3547415), (10, 2837932), (20, 1418966), (40, 709483), (157, 180760), (314, 90380), (628, 45190), (785, 36152), (1256, 22595), (1570, 18076), (3140, 9038), (4519, 6280)]