21698000

素因数分解:

$2^4\times 5^3\times {\mathrm{19}}^1\times {\mathrm{571}}^1$

素因数の和:613

約数の個数: 80

約数和(自身を含む): 55323840

約数和(自身を除く): 33625840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 125, 152, 190, 200, 250, 304, 380, 400, 475, 500, 571, 760, 950, 1000, 1142, 1520, 1900, 2000, 2284, 2375, 2855, 3800, 4568, 4750, 5710, 7600, 9136, 9500, 10849, 11420, 14275, 19000, 21698, 22840, 28550, 38000, 43396, 45680, 54245, 57100, 71375, 86792, 108490, 114200, 142750, 173584, 216980, 228400, 271225, 285500, 433960, 542450, 571000, 867920, 1084900, 1142000, 1356125, 2169800, 2712250, 4339600, 5424500, 10849000, 21698000]

約数ペア:

[(1, 21698000), (2, 10849000), (4, 5424500), (5, 4339600), (8, 2712250), (10, 2169800), (16, 1356125), (19, 1142000), (20, 1084900), (25, 867920), (38, 571000), (40, 542450), (50, 433960), (76, 285500), (80, 271225), (95, 228400), (100, 216980), (125, 173584), (152, 142750), (190, 114200), (200, 108490), (250, 86792), (304, 71375), (380, 57100), (400, 54245), (475, 45680), (500, 43396), (571, 38000), (760, 28550), (950, 22840), (1000, 21698), (1142, 19000), (1520, 14275), (1900, 11420), (2000, 10849), (2284, 9500), (2375, 9136), (2855, 7600), (3800, 5710), (4568, 4750)]