1281200

素因数分解:

$2^4\times 5^2\times {\mathrm{3203}}^1$

素因数の和:3221

約数の個数: 30

約数和(自身を含む): 3079044

約数和(自身を除く): 1797844

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 3203, 6406, 12812, 16015, 25624, 32030, 51248, 64060, 80075, 128120, 160150, 256240, 320300, 640600, 1281200]

約数ペア:

[(1, 1281200), (2, 640600), (4, 320300), (5, 256240), (8, 160150), (10, 128120), (16, 80075), (20, 64060), (25, 51248), (40, 32030), (50, 25624), (80, 16015), (100, 12812), (200, 6406), (400, 3203)]