7780220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{467}}^1$

素因数の和:507

約数の個数: 72

約数和(自身を含む): 20167056

約数和(自身を除く): 12386836

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 467, 476, 490, 595, 833, 934, 980, 1190, 1666, 1868, 2335, 2380, 3269, 3332, 4165, 4670, 6538, 7939, 8330, 9340, 13076, 15878, 16345, 16660, 22883, 31756, 32690, 39695, 45766, 55573, 65380, 79390, 91532, 111146, 114415, 158780, 222292, 228830, 277865, 389011, 457660, 555730, 778022, 1111460, 1556044, 1945055, 3890110, 7780220]

約数ペア:

[(1, 7780220), (2, 3890110), (4, 1945055), (5, 1556044), (7, 1111460), (10, 778022), (14, 555730), (17, 457660), (20, 389011), (28, 277865), (34, 228830), (35, 222292), (49, 158780), (68, 114415), (70, 111146), (85, 91532), (98, 79390), (119, 65380), (140, 55573), (170, 45766), (196, 39695), (238, 32690), (245, 31756), (340, 22883), (467, 16660), (476, 16345), (490, 15878), (595, 13076), (833, 9340), (934, 8330), (980, 7939), (1190, 6538), (1666, 4670), (1868, 4165), (2335, 3332), (2380, 3269)]