28881520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{19001}}^1$

素因数の和:19033

約数の個数: 40

約数和(自身を含む): 70687440

約数和(自身を除く): 41805920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 19001, 38002, 76004, 95005, 152008, 190010, 304016, 361019, 380020, 722038, 760040, 1444076, 1520080, 1805095, 2888152, 3610190, 5776304, 7220380, 14440760, 28881520]

約数ペア:

[(1, 28881520), (2, 14440760), (4, 7220380), (5, 5776304), (8, 3610190), (10, 2888152), (16, 1805095), (19, 1520080), (20, 1444076), (38, 760040), (40, 722038), (76, 380020), (80, 361019), (95, 304016), (152, 190010), (190, 152008), (304, 95005), (380, 76004), (760, 38002), (1520, 19001)]