201220120

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{503}}^1$

素因数の和:724

約数の個数: 64

約数和(自身を含む): 463216320

約数和(自身を除く): 261996200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 137, 146, 274, 292, 365, 503, 548, 584, 685, 730, 1006, 1096, 1370, 1460, 2012, 2515, 2740, 2920, 4024, 5030, 5480, 10001, 10060, 20002, 20120, 36719, 40004, 50005, 68911, 73438, 80008, 100010, 137822, 146876, 183595, 200020, 275644, 293752, 344555, 367190, 400040, 551288, 689110, 734380, 1378220, 1468760, 2756440, 5030503, 10061006, 20122012, 25152515, 40244024, 50305030, 100610060, 201220120]

約数ペア:

[(1, 201220120), (2, 100610060), (4, 50305030), (5, 40244024), (8, 25152515), (10, 20122012), (20, 10061006), (40, 5030503), (73, 2756440), (137, 1468760), (146, 1378220), (274, 734380), (292, 689110), (365, 551288), (503, 400040), (548, 367190), (584, 344555), (685, 293752), (730, 275644), (1006, 200020), (1096, 183595), (1370, 146876), (1460, 137822), (2012, 100010), (2515, 80008), (2740, 73438), (2920, 68911), (4024, 50005), (5030, 40004), (5480, 36719), (10001, 20120), (10060, 20002)]