201217425

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^2\times {\mathrm{1451}}^1$

素因数の和:1550

約数の個数: 36

約数和(自身を含む): 340830864

約数和(自身を除く): 139613439

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 1451, 1849, 3225, 4353, 5547, 7255, 9245, 21765, 27735, 36275, 46225, 62393, 108825, 138675, 187179, 311965, 935895, 1559825, 2682899, 4679475, 8048697, 13414495, 40243485, 67072475, 201217425]

約数ペア:

[(1, 201217425), (3, 67072475), (5, 40243485), (15, 13414495), (25, 8048697), (43, 4679475), (75, 2682899), (129, 1559825), (215, 935895), (645, 311965), (1075, 187179), (1451, 138675), (1849, 108825), (3225, 62393), (4353, 46225), (5547, 36275), (7255, 27735), (9245, 21765)]