1378264960

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{547}}^1$

素因数の和:724

約数の個数: 128

約数和(自身を含む): 3434250240

約数和(自身を除く): 2055985280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 127, 128, 155, 160, 248, 254, 310, 320, 496, 508, 547, 620, 635, 640, 992, 1016, 1094, 1240, 1270, 1984, 2032, 2188, 2480, 2540, 2735, 3937, 3968, 4064, 4376, 4960, 5080, 5470, 7874, 8128, 8752, 9920, 10160, 10940, 15748, 16256, 16957, 17504, 19685, 19840, 20320, 21880, 31496, 33914, 35008, 39370, 40640, 43760, 62992, 67828, 69469, 70016, 78740, 81280, 84785, 87520, 125984, 135656, 138938, 157480, 169570, 175040, 251968, 271312, 277876, 314960, 339140, 347345, 350080, 503936, 542624, 555752, 629920, 678280, 694690, 1085248, 1111504, 1259840, 1356560, 1389380, 2153539, 2170496, 2223008, 2519680, 2713120, 2778760, 4307078, 4446016, 5426240, 5557520, 8614156, 8892032, 10767695, 10852480, 11115040, 17228312, 21535390, 22230080, 34456624, 43070780, 44460160, 68913248, 86141560, 137826496, 172283120, 275652992, 344566240, 689132480, 1378264960]

約数ペア:

[(1, 1378264960), (2, 689132480), (4, 344566240), (5, 275652992), (8, 172283120), (10, 137826496), (16, 86141560), (20, 68913248), (31, 44460160), (32, 43070780), (40, 34456624), (62, 22230080), (64, 21535390), (80, 17228312), (124, 11115040), (127, 10852480), (128, 10767695), (155, 8892032), (160, 8614156), (248, 5557520), (254, 5426240), (310, 4446016), (320, 4307078), (496, 2778760), (508, 2713120), (547, 2519680), (620, 2223008), (635, 2170496), (640, 2153539), (992, 1389380), (1016, 1356560), (1094, 1259840), (1240, 1111504), (1270, 1085248), (1984, 694690), (2032, 678280), (2188, 629920), (2480, 555752), (2540, 542624), (2735, 503936), (3937, 350080), (3968, 347345), (4064, 339140), (4376, 314960), (4960, 277876), (5080, 271312), (5470, 251968), (7874, 175040), (8128, 169570), (8752, 157480), (9920, 138938), (10160, 135656), (10940, 125984), (15748, 87520), (16256, 84785), (16957, 81280), (17504, 78740), (19685, 70016), (19840, 69469), (20320, 67828), (21880, 62992), (31496, 43760), (33914, 40640), (35008, 39370)]