80216600

素因数分解:

$2^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{5077}}^1$

素因数の和:5172

約数の個数: 48

約数和(自身を含む): 188901600

約数和(自身を除く): 108685000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 158, 200, 316, 395, 632, 790, 1580, 1975, 3160, 3950, 5077, 7900, 10154, 15800, 20308, 25385, 40616, 50770, 101540, 126925, 203080, 253850, 401083, 507700, 802166, 1015400, 1604332, 2005415, 3208664, 4010830, 8021660, 10027075, 16043320, 20054150, 40108300, 80216600]

約数ペア:

[(1, 80216600), (2, 40108300), (4, 20054150), (5, 16043320), (8, 10027075), (10, 8021660), (20, 4010830), (25, 3208664), (40, 2005415), (50, 1604332), (79, 1015400), (100, 802166), (158, 507700), (200, 401083), (316, 253850), (395, 203080), (632, 126925), (790, 101540), (1580, 50770), (1975, 40616), (3160, 25385), (3950, 20308), (5077, 15800), (7900, 10154)]