251986560

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{18749}}^1$

素因数の和:18778

約数の個数: 128

約数和(自身を含む): 918000000

約数和(自身を除く): 666013440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2240, 2688, 3360, 4480, 6720, 13440, 18749, 37498, 56247, 74996, 93745, 112494, 131243, 149992, 187490, 224988, 262486, 281235, 299984, 374980, 393729, 449976, 524972, 562470, 599968, 656215, 749960, 787458, 899952, 1049944, 1124940, 1199936, 1312430, 1499920, 1574916, 1799904, 1968645, 2099888, 2249880, 2399872, 2624860, 2999840, 3149832, 3599808, 3937290, 4199776, 4499760, 5249720, 5999680, 6299664, 7199616, 7874580, 8399552, 8999520, 10499440, 11999360, 12599328, 15749160, 16799104, 17999040, 20998880, 25198656, 31498320, 35998080, 41997760, 50397312, 62996640, 83995520, 125993280, 251986560]

約数ペア:

[(1, 251986560), (2, 125993280), (3, 83995520), (4, 62996640), (5, 50397312), (6, 41997760), (7, 35998080), (8, 31498320), (10, 25198656), (12, 20998880), (14, 17999040), (15, 16799104), (16, 15749160), (20, 12599328), (21, 11999360), (24, 10499440), (28, 8999520), (30, 8399552), (32, 7874580), (35, 7199616), (40, 6299664), (42, 5999680), (48, 5249720), (56, 4499760), (60, 4199776), (64, 3937290), (70, 3599808), (80, 3149832), (84, 2999840), (96, 2624860), (105, 2399872), (112, 2249880), (120, 2099888), (128, 1968645), (140, 1799904), (160, 1574916), (168, 1499920), (192, 1312430), (210, 1199936), (224, 1124940), (240, 1049944), (280, 899952), (320, 787458), (336, 749960), (384, 656215), (420, 599968), (448, 562470), (480, 524972), (560, 449976), (640, 393729), (672, 374980), (840, 299984), (896, 281235), (960, 262486), (1120, 224988), (1344, 187490), (1680, 149992), (1920, 131243), (2240, 112494), (2688, 93745), (3360, 74996), (4480, 56247), (6720, 37498), (13440, 18749)]