642179280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{19531}}^1$

素因数の和:19684

約数の個数: 80

約数和(自身を含む): 2005389504

約数和(自身を除く): 1363210224

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 137, 240, 274, 411, 548, 685, 822, 1096, 1370, 1644, 2055, 2192, 2740, 3288, 4110, 5480, 6576, 8220, 10960, 16440, 19531, 32880, 39062, 58593, 78124, 97655, 117186, 156248, 195310, 234372, 292965, 312496, 390620, 468744, 585930, 781240, 937488, 1171860, 1562480, 2343720, 2675747, 4687440, 5351494, 8027241, 10702988, 13378735, 16054482, 21405976, 26757470, 32108964, 40136205, 42811952, 53514940, 64217928, 80272410, 107029880, 128435856, 160544820, 214059760, 321089640, 642179280]

約数ペア:

[(1, 642179280), (2, 321089640), (3, 214059760), (4, 160544820), (5, 128435856), (6, 107029880), (8, 80272410), (10, 64217928), (12, 53514940), (15, 42811952), (16, 40136205), (20, 32108964), (24, 26757470), (30, 21405976), (40, 16054482), (48, 13378735), (60, 10702988), (80, 8027241), (120, 5351494), (137, 4687440), (240, 2675747), (274, 2343720), (411, 1562480), (548, 1171860), (685, 937488), (822, 781240), (1096, 585930), (1370, 468744), (1644, 390620), (2055, 312496), (2192, 292965), (2740, 234372), (3288, 195310), (4110, 156248), (5480, 117186), (6576, 97655), (8220, 78124), (10960, 58593), (16440, 39062), (19531, 32880)]