255737600

素因数分解:

$2^8\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1289}}^1$

素因数の和:1346

約数の個数: 108

約数和(自身を含む): 653916480

約数和(自身を除く): 398178880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 155, 160, 200, 248, 256, 310, 320, 400, 496, 620, 640, 775, 800, 992, 1240, 1280, 1289, 1550, 1600, 1984, 2480, 2578, 3100, 3200, 3968, 4960, 5156, 6200, 6400, 6445, 7936, 9920, 10312, 12400, 12890, 19840, 20624, 24800, 25780, 32225, 39680, 39959, 41248, 49600, 51560, 64450, 79918, 82496, 99200, 103120, 128900, 159836, 164992, 198400, 199795, 206240, 257800, 319672, 329984, 399590, 412480, 515600, 639344, 799180, 824960, 998975, 1031200, 1278688, 1598360, 1649920, 1997950, 2062400, 2557376, 3196720, 3995900, 4124800, 5114752, 6393440, 7991800, 8249600, 10229504, 12786880, 15983600, 25573760, 31967200, 51147520, 63934400, 127868800, 255737600]

約数ペア:

[(1, 255737600), (2, 127868800), (4, 63934400), (5, 51147520), (8, 31967200), (10, 25573760), (16, 15983600), (20, 12786880), (25, 10229504), (31, 8249600), (32, 7991800), (40, 6393440), (50, 5114752), (62, 4124800), (64, 3995900), (80, 3196720), (100, 2557376), (124, 2062400), (128, 1997950), (155, 1649920), (160, 1598360), (200, 1278688), (248, 1031200), (256, 998975), (310, 824960), (320, 799180), (400, 639344), (496, 515600), (620, 412480), (640, 399590), (775, 329984), (800, 319672), (992, 257800), (1240, 206240), (1280, 199795), (1289, 198400), (1550, 164992), (1600, 159836), (1984, 128900), (2480, 103120), (2578, 99200), (3100, 82496), (3200, 79918), (3968, 64450), (4960, 51560), (5156, 49600), (6200, 41248), (6400, 39959), (6445, 39680), (7936, 32225), (9920, 25780), (10312, 24800), (12400, 20624), (12890, 19840)]