28490800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5479}}^1$

素因数の和:5510

約数の個数: 60

約数和(自身を含む): 73727920

約数和(自身を除く): 45237120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 5479, 10958, 21916, 27395, 43832, 54790, 71227, 87664, 109580, 136975, 142454, 219160, 273950, 284908, 356135, 438320, 547900, 569816, 712270, 1095800, 1139632, 1424540, 1780675, 2191600, 2849080, 3561350, 5698160, 7122700, 14245400, 28490800]

約数ペア:

[(1, 28490800), (2, 14245400), (4, 7122700), (5, 5698160), (8, 3561350), (10, 2849080), (13, 2191600), (16, 1780675), (20, 1424540), (25, 1139632), (26, 1095800), (40, 712270), (50, 569816), (52, 547900), (65, 438320), (80, 356135), (100, 284908), (104, 273950), (130, 219160), (200, 142454), (208, 136975), (260, 109580), (325, 87664), (400, 71227), (520, 54790), (650, 43832), (1040, 27395), (1300, 21916), (2600, 10958), (5200, 5479)]