128653805

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{397}}^1$

素因数の和:653

約数の個数: 32

約数和(自身を含む): 181564416

約数和(自身を除く): 52910611

約数列:

[1, 5, 7, 35, 47, 197, 235, 329, 397, 985, 1379, 1645, 1985, 2779, 6895, 9259, 13895, 18659, 46295, 64813, 78209, 93295, 130613, 324065, 391045, 547463, 653065, 2737315, 3675823, 18379115, 25730761, 128653805]

約数ペア:

[(1, 128653805), (5, 25730761), (7, 18379115), (35, 3675823), (47, 2737315), (197, 653065), (235, 547463), (329, 391045), (397, 324065), (985, 130613), (1379, 93295), (1645, 78209), (1985, 64813), (2779, 46295), (6895, 18659), (9259, 13895)]