21768200

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{3511}}^1$

素因数の和:3558

約数の個数: 48

約数和(自身を含む): 52258560

約数和(自身を除く): 30490360

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 3100, 3511, 6200, 7022, 14044, 17555, 28088, 35110, 70220, 87775, 108841, 140440, 175550, 217682, 351100, 435364, 544205, 702200, 870728, 1088410, 2176820, 2721025, 4353640, 5442050, 10884100, 21768200]

約数ペア:

[(1, 21768200), (2, 10884100), (4, 5442050), (5, 4353640), (8, 2721025), (10, 2176820), (20, 1088410), (25, 870728), (31, 702200), (40, 544205), (50, 435364), (62, 351100), (100, 217682), (124, 175550), (155, 140440), (200, 108841), (248, 87775), (310, 70220), (620, 35110), (775, 28088), (1240, 17555), (1550, 14044), (3100, 7022), (3511, 6200)]