64797775

素因数分解:

$5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 96025600

約数和(自身を除く): 31227825

約数列:

[1, 5, 7, 25, 35, 43, 79, 109, 175, 215, 301, 395, 545, 553, 763, 1075, 1505, 1975, 2725, 2765, 3397, 3815, 4687, 7525, 8611, 13825, 16985, 19075, 23435, 23779, 32809, 43055, 60277, 84925, 117175, 118895, 164045, 215275, 301385, 370273, 594475, 820225, 1506925, 1851365, 2591911, 9256825, 12959555, 64797775]

約数ペア:

[(1, 64797775), (5, 12959555), (7, 9256825), (25, 2591911), (35, 1851365), (43, 1506925), (79, 820225), (109, 594475), (175, 370273), (215, 301385), (301, 215275), (395, 164045), (545, 118895), (553, 117175), (763, 84925), (1075, 60277), (1505, 43055), (1975, 32809), (2725, 23779), (2765, 23435), (3397, 19075), (3815, 16985), (4687, 13825), (7525, 8611)]