244020980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{499}}^2$

素因数の和:1021

約数の個数: 54

約数和(自身を含む): 597305394

約数和(自身を除く): 353284414

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 499, 980, 998, 1996, 2495, 3493, 4990, 6986, 9980, 13972, 17465, 24451, 34930, 48902, 69860, 97804, 122255, 244510, 249001, 489020, 498002, 996004, 1245005, 1743007, 2490010, 3486014, 4980020, 6972028, 8715035, 12201049, 17430070, 24402098, 34860140, 48804196, 61005245, 122010490, 244020980]

約数ペア:

[(1, 244020980), (2, 122010490), (4, 61005245), (5, 48804196), (7, 34860140), (10, 24402098), (14, 17430070), (20, 12201049), (28, 8715035), (35, 6972028), (49, 4980020), (70, 3486014), (98, 2490010), (140, 1743007), (196, 1245005), (245, 996004), (490, 498002), (499, 489020), (980, 249001), (998, 244510), (1996, 122255), (2495, 97804), (3493, 69860), (4990, 48902), (6986, 34930), (9980, 24451), (13972, 17465)]