265776640

素因数分解:

$2^9\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:268

約数の個数: 160

約数和(自身を含む): 700026624

約数和(自身を除く): 434249984

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 64, 68, 80, 85, 124, 128, 136, 155, 160, 170, 197, 248, 256, 272, 310, 320, 340, 394, 496, 512, 527, 544, 620, 640, 680, 788, 985, 992, 1054, 1088, 1240, 1280, 1360, 1576, 1970, 1984, 2108, 2176, 2480, 2560, 2635, 2720, 3152, 3349, 3940, 3968, 4216, 4352, 4960, 5270, 5440, 6107, 6304, 6698, 7880, 7936, 8432, 8704, 9920, 10540, 10880, 12214, 12608, 13396, 15760, 15872, 16745, 16864, 19840, 21080, 21760, 24428, 25216, 26792, 30535, 31520, 33490, 33728, 39680, 42160, 43520, 48856, 50432, 53584, 61070, 63040, 66980, 67456, 79360, 84320, 97712, 100864, 103819, 107168, 122140, 126080, 133960, 134912, 168640, 195424, 207638, 214336, 244280, 252160, 267920, 269824, 337280, 390848, 415276, 428672, 488560, 504320, 519095, 535840, 674560, 781696, 830552, 857344, 977120, 1038190, 1071680, 1349120, 1563392, 1661104, 1714688, 1954240, 2076380, 2143360, 3126784, 3322208, 3908480, 4152760, 4286720, 6644416, 7816960, 8305520, 8573440, 13288832, 15633920, 16611040, 26577664, 33222080, 53155328, 66444160, 132888320, 265776640]

約数ペア:

[(1, 265776640), (2, 132888320), (4, 66444160), (5, 53155328), (8, 33222080), (10, 26577664), (16, 16611040), (17, 15633920), (20, 13288832), (31, 8573440), (32, 8305520), (34, 7816960), (40, 6644416), (62, 4286720), (64, 4152760), (68, 3908480), (80, 3322208), (85, 3126784), (124, 2143360), (128, 2076380), (136, 1954240), (155, 1714688), (160, 1661104), (170, 1563392), (197, 1349120), (248, 1071680), (256, 1038190), (272, 977120), (310, 857344), (320, 830552), (340, 781696), (394, 674560), (496, 535840), (512, 519095), (527, 504320), (544, 488560), (620, 428672), (640, 415276), (680, 390848), (788, 337280), (985, 269824), (992, 267920), (1054, 252160), (1088, 244280), (1240, 214336), (1280, 207638), (1360, 195424), (1576, 168640), (1970, 134912), (1984, 133960), (2108, 126080), (2176, 122140), (2480, 107168), (2560, 103819), (2635, 100864), (2720, 97712), (3152, 84320), (3349, 79360), (3940, 67456), (3968, 66980), (4216, 63040), (4352, 61070), (4960, 53584), (5270, 50432), (5440, 48856), (6107, 43520), (6304, 42160), (6698, 39680), (7880, 33728), (7936, 33490), (8432, 31520), (8704, 30535), (9920, 26792), (10540, 25216), (10880, 24428), (12214, 21760), (12608, 21080), (13396, 19840), (15760, 16864), (15872, 16745)]