205979340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{70061}}^1$

素因数の和:70087

約数の個数: 72

約数和(自身を含む): 670913712

約数和(自身を除く): 464934372

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 70061, 140122, 210183, 280244, 350305, 420366, 490427, 700610, 840732, 980854, 1050915, 1401220, 1471281, 1961708, 2101830, 2452135, 2942562, 3432989, 4203660, 4904270, 5885124, 6865978, 7356405, 9808540, 10298967, 13731956, 14712810, 17164945, 20597934, 29425620, 34329890, 41195868, 51494835, 68659780, 102989670, 205979340]

約数ペア:

[(1, 205979340), (2, 102989670), (3, 68659780), (4, 51494835), (5, 41195868), (6, 34329890), (7, 29425620), (10, 20597934), (12, 17164945), (14, 14712810), (15, 13731956), (20, 10298967), (21, 9808540), (28, 7356405), (30, 6865978), (35, 5885124), (42, 4904270), (49, 4203660), (60, 3432989), (70, 2942562), (84, 2452135), (98, 2101830), (105, 1961708), (140, 1471281), (147, 1401220), (196, 1050915), (210, 980854), (245, 840732), (294, 700610), (420, 490427), (490, 420366), (588, 350305), (735, 280244), (980, 210183), (1470, 140122), (2940, 70061)]