251214080

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:552

約数の個数: 144

約数和(自身を含む): 670301184

約数和(自身を除く): 419087104

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 256, 260, 310, 320, 403, 416, 487, 496, 520, 620, 640, 806, 832, 974, 992, 1040, 1240, 1280, 1612, 1664, 1948, 1984, 2015, 2080, 2435, 2480, 3224, 3328, 3896, 3968, 4030, 4160, 4870, 4960, 6331, 6448, 7792, 7936, 8060, 8320, 9740, 9920, 12662, 12896, 15097, 15584, 16120, 16640, 19480, 19840, 25324, 25792, 30194, 31168, 31655, 32240, 38960, 39680, 50648, 51584, 60388, 62336, 63310, 64480, 75485, 77920, 101296, 103168, 120776, 124672, 126620, 128960, 150970, 155840, 196261, 202592, 241552, 253240, 257920, 301940, 311680, 392522, 405184, 483104, 506480, 515840, 603880, 623360, 785044, 810368, 966208, 981305, 1012960, 1207760, 1570088, 1620736, 1932416, 1962610, 2025920, 2415520, 3140176, 3864832, 3925220, 4051840, 4831040, 6280352, 7850440, 8103680, 9662080, 12560704, 15700880, 19324160, 25121408, 31401760, 50242816, 62803520, 125607040, 251214080]

約数ペア:

[(1, 251214080), (2, 125607040), (4, 62803520), (5, 50242816), (8, 31401760), (10, 25121408), (13, 19324160), (16, 15700880), (20, 12560704), (26, 9662080), (31, 8103680), (32, 7850440), (40, 6280352), (52, 4831040), (62, 4051840), (64, 3925220), (65, 3864832), (80, 3140176), (104, 2415520), (124, 2025920), (128, 1962610), (130, 1932416), (155, 1620736), (160, 1570088), (208, 1207760), (248, 1012960), (256, 981305), (260, 966208), (310, 810368), (320, 785044), (403, 623360), (416, 603880), (487, 515840), (496, 506480), (520, 483104), (620, 405184), (640, 392522), (806, 311680), (832, 301940), (974, 257920), (992, 253240), (1040, 241552), (1240, 202592), (1280, 196261), (1612, 155840), (1664, 150970), (1948, 128960), (1984, 126620), (2015, 124672), (2080, 120776), (2435, 103168), (2480, 101296), (3224, 77920), (3328, 75485), (3896, 64480), (3968, 63310), (4030, 62336), (4160, 60388), (4870, 51584), (4960, 50648), (6331, 39680), (6448, 38960), (7792, 32240), (7936, 31655), (8060, 31168), (8320, 30194), (9740, 25792), (9920, 25324), (12662, 19840), (12896, 19480), (15097, 16640), (15584, 16120)]