18761000

素因数分解:

$2^3\times 5^3\times {\mathrm{73}}^1\times {\mathrm{257}}^1$

素因数の和:351

約数の個数: 64

約数和(自身を含む): 44675280

約数和(自身を除く): 25914280

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 73, 100, 125, 146, 200, 250, 257, 292, 365, 500, 514, 584, 730, 1000, 1028, 1285, 1460, 1825, 2056, 2570, 2920, 3650, 5140, 6425, 7300, 9125, 10280, 12850, 14600, 18250, 18761, 25700, 32125, 36500, 37522, 51400, 64250, 73000, 75044, 93805, 128500, 150088, 187610, 257000, 375220, 469025, 750440, 938050, 1876100, 2345125, 3752200, 4690250, 9380500, 18761000]

約数ペア:

[(1, 18761000), (2, 9380500), (4, 4690250), (5, 3752200), (8, 2345125), (10, 1876100), (20, 938050), (25, 750440), (40, 469025), (50, 375220), (73, 257000), (100, 187610), (125, 150088), (146, 128500), (200, 93805), (250, 75044), (257, 73000), (292, 64250), (365, 51400), (500, 37522), (514, 36500), (584, 32125), (730, 25700), (1000, 18761), (1028, 18250), (1285, 14600), (1460, 12850), (1825, 10280), (2056, 9125), (2570, 7300), (2920, 6425), (3650, 5140)]