19501840

素因数分解:

$2^4\times 5^1\times {\mathrm{317}}^1\times {\mathrm{769}}^1$

素因数の和:1099

約数の個数: 40

約数和(自身を含む): 45543960

約数和(自身を除く): 26042120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 317, 634, 769, 1268, 1538, 1585, 2536, 3076, 3170, 3845, 5072, 6152, 6340, 7690, 12304, 12680, 15380, 25360, 30760, 61520, 243773, 487546, 975092, 1218865, 1950184, 2437730, 3900368, 4875460, 9750920, 19501840]

約数ペア:

[(1, 19501840), (2, 9750920), (4, 4875460), (5, 3900368), (8, 2437730), (10, 1950184), (16, 1218865), (20, 975092), (40, 487546), (80, 243773), (317, 61520), (634, 30760), (769, 25360), (1268, 15380), (1538, 12680), (1585, 12304), (2536, 7690), (3076, 6340), (3170, 6152), (3845, 5072)]