15530000

素因数分解:

$2^4\times 5^4\times {\mathrm{1553}}^1$

素因数の和:1581

約数の個数: 50

約数和(自身を含む): 37623894

約数和(自身を除く): 22093894

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 1553, 2000, 2500, 3106, 5000, 6212, 7765, 10000, 12424, 15530, 24848, 31060, 38825, 62120, 77650, 124240, 155300, 194125, 310600, 388250, 621200, 776500, 970625, 1553000, 1941250, 3106000, 3882500, 7765000, 15530000]

約数ペア:

[(1, 15530000), (2, 7765000), (4, 3882500), (5, 3106000), (8, 1941250), (10, 1553000), (16, 970625), (20, 776500), (25, 621200), (40, 388250), (50, 310600), (80, 194125), (100, 155300), (125, 124240), (200, 77650), (250, 62120), (400, 38825), (500, 31060), (625, 24848), (1000, 15530), (1250, 12424), (1553, 10000), (2000, 7765), (2500, 6212), (3106, 5000)]