161777180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{313}}^1\times {\mathrm{601}}^1$

素因数の和:966

約数の個数: 48

約数和(自身を含む): 349323744

約数和(自身を除く): 187546564

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 313, 430, 601, 626, 860, 1202, 1252, 1565, 2404, 3005, 3130, 6010, 6260, 12020, 13459, 25843, 26918, 51686, 53836, 67295, 103372, 129215, 134590, 188113, 258430, 269180, 376226, 516860, 752452, 940565, 1881130, 3762260, 8088859, 16177718, 32355436, 40444295, 80888590, 161777180]

約数ペア:

[(1, 161777180), (2, 80888590), (4, 40444295), (5, 32355436), (10, 16177718), (20, 8088859), (43, 3762260), (86, 1881130), (172, 940565), (215, 752452), (313, 516860), (430, 376226), (601, 269180), (626, 258430), (860, 188113), (1202, 134590), (1252, 129215), (1565, 103372), (2404, 67295), (3005, 53836), (3130, 51686), (6010, 26918), (6260, 25843), (12020, 13459)]