20148786080

素因数分解:

$2^5\times 5^1\times {\mathrm{691}}^1\times {\mathrm{182243}}^1$

素因数の和:182949

約数の個数: 48

約数和(自身を含む): 47670656544

約数和(自身を除く): 27521870464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 691, 1382, 2764, 3455, 5528, 6910, 11056, 13820, 22112, 27640, 55280, 110560, 182243, 364486, 728972, 911215, 1457944, 1822430, 2915888, 3644860, 5831776, 7289720, 14579440, 29158880, 125929913, 251859826, 503719652, 629649565, 1007439304, 1259299130, 2014878608, 2518598260, 4029757216, 5037196520, 10074393040, 20148786080]

約数ペア:

[(1, 20148786080), (2, 10074393040), (4, 5037196520), (5, 4029757216), (8, 2518598260), (10, 2014878608), (16, 1259299130), (20, 1007439304), (32, 629649565), (40, 503719652), (80, 251859826), (160, 125929913), (691, 29158880), (1382, 14579440), (2764, 7289720), (3455, 5831776), (5528, 3644860), (6910, 2915888), (11056, 1822430), (13820, 1457944), (22112, 911215), (27640, 728972), (55280, 364486), (110560, 182243)]