19969760

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6569}}^1$

素因数の和:6603

約数の個数: 48

約数和(自身を含む): 49669200

約数和(自身を除く): 29699440

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 6569, 13138, 26276, 32845, 52552, 65690, 105104, 124811, 131380, 210208, 249622, 262760, 499244, 525520, 624055, 998488, 1051040, 1248110, 1996976, 2496220, 3993952, 4992440, 9984880, 19969760]

約数ペア:

[(1, 19969760), (2, 9984880), (4, 4992440), (5, 3993952), (8, 2496220), (10, 1996976), (16, 1248110), (19, 1051040), (20, 998488), (32, 624055), (38, 525520), (40, 499244), (76, 262760), (80, 249622), (95, 210208), (152, 131380), (160, 124811), (190, 105104), (304, 65690), (380, 52552), (608, 32845), (760, 26276), (1520, 13138), (3040, 6569)]