201577180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{1997}}^1$

素因数の和:2123

約数の個数: 72

約数和(自身を含む): 497454048

約数和(自身を除く): 295876868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 103, 140, 196, 206, 245, 412, 490, 515, 721, 980, 1030, 1442, 1997, 2060, 2884, 3605, 3994, 5047, 7210, 7988, 9985, 10094, 13979, 14420, 19970, 20188, 25235, 27958, 39940, 50470, 55916, 69895, 97853, 100940, 139790, 195706, 205691, 279580, 391412, 411382, 489265, 822764, 978530, 1028455, 1439837, 1957060, 2056910, 2879674, 4113820, 5759348, 7199185, 10078859, 14398370, 20157718, 28796740, 40315436, 50394295, 100788590, 201577180]

約数ペア:

[(1, 201577180), (2, 100788590), (4, 50394295), (5, 40315436), (7, 28796740), (10, 20157718), (14, 14398370), (20, 10078859), (28, 7199185), (35, 5759348), (49, 4113820), (70, 2879674), (98, 2056910), (103, 1957060), (140, 1439837), (196, 1028455), (206, 978530), (245, 822764), (412, 489265), (490, 411382), (515, 391412), (721, 279580), (980, 205691), (1030, 195706), (1442, 139790), (1997, 100940), (2060, 97853), (2884, 69895), (3605, 55916), (3994, 50470), (5047, 39940), (7210, 27958), (7988, 25235), (9985, 20188), (10094, 19970), (13979, 14420)]