263395840

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3319}}^1$

素因数の和:3373

約数の個数: 80

約数和(自身を含む): 652101120

約数和(自身を除く): 388705280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1984, 2480, 2560, 3319, 3968, 4960, 6638, 7936, 9920, 13276, 15872, 16595, 19840, 26552, 33190, 39680, 53104, 66380, 79360, 102889, 106208, 132760, 205778, 212416, 265520, 411556, 424832, 514445, 531040, 823112, 849664, 1028890, 1062080, 1646224, 1699328, 2057780, 2124160, 3292448, 4115560, 4248320, 6584896, 8231120, 8496640, 13169792, 16462240, 26339584, 32924480, 52679168, 65848960, 131697920, 263395840]

約数ペア:

[(1, 263395840), (2, 131697920), (4, 65848960), (5, 52679168), (8, 32924480), (10, 26339584), (16, 16462240), (20, 13169792), (31, 8496640), (32, 8231120), (40, 6584896), (62, 4248320), (64, 4115560), (80, 3292448), (124, 2124160), (128, 2057780), (155, 1699328), (160, 1646224), (248, 1062080), (256, 1028890), (310, 849664), (320, 823112), (496, 531040), (512, 514445), (620, 424832), (640, 411556), (992, 265520), (1240, 212416), (1280, 205778), (1984, 132760), (2480, 106208), (2560, 102889), (3319, 79360), (3968, 66380), (4960, 53104), (6638, 39680), (7936, 33190), (9920, 26552), (13276, 19840), (15872, 16595)]