64529200

素因数分解:

$2^4\times 5^2\times {\mathrm{161323}}^1$

素因数の和:161341

約数の個数: 30

約数和(自身を含む): 155032364

約数和(自身を除く): 90503164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 161323, 322646, 645292, 806615, 1290584, 1613230, 2581168, 3226460, 4033075, 6452920, 8066150, 12905840, 16132300, 32264600, 64529200]

約数ペア:

[(1, 64529200), (2, 32264600), (4, 16132300), (5, 12905840), (8, 8066150), (10, 6452920), (16, 4033075), (20, 3226460), (25, 2581168), (40, 1613230), (50, 1290584), (80, 806615), (100, 645292), (200, 322646), (400, 161323)]