1286771820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{20681}}^1$

素因数の和:20771

約数の個数: 96

約数和(自身を含む): 3877626816

約数和(自身を除く): 2590854996

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 61, 68, 85, 102, 122, 170, 183, 204, 244, 255, 305, 340, 366, 510, 610, 732, 915, 1020, 1037, 1220, 1830, 2074, 3111, 3660, 4148, 5185, 6222, 10370, 12444, 15555, 20681, 20740, 31110, 41362, 62043, 62220, 82724, 103405, 124086, 206810, 248172, 310215, 351577, 413620, 620430, 703154, 1054731, 1240860, 1261541, 1406308, 1757885, 2109462, 2523082, 3515770, 3784623, 4218924, 5046164, 5273655, 6307705, 7031540, 7569246, 10547310, 12615410, 15138492, 18923115, 21094620, 21446197, 25230820, 37846230, 42892394, 64338591, 75692460, 85784788, 107230985, 128677182, 214461970, 257354364, 321692955, 428923940, 643385910, 1286771820]

約数ペア:

[(1, 1286771820), (2, 643385910), (3, 428923940), (4, 321692955), (5, 257354364), (6, 214461970), (10, 128677182), (12, 107230985), (15, 85784788), (17, 75692460), (20, 64338591), (30, 42892394), (34, 37846230), (51, 25230820), (60, 21446197), (61, 21094620), (68, 18923115), (85, 15138492), (102, 12615410), (122, 10547310), (170, 7569246), (183, 7031540), (204, 6307705), (244, 5273655), (255, 5046164), (305, 4218924), (340, 3784623), (366, 3515770), (510, 2523082), (610, 2109462), (732, 1757885), (915, 1406308), (1020, 1261541), (1037, 1240860), (1220, 1054731), (1830, 703154), (2074, 620430), (3111, 413620), (3660, 351577), (4148, 310215), (5185, 248172), (6222, 206810), (10370, 124086), (12444, 103405), (15555, 82724), (20681, 62220), (20740, 62043), (31110, 41362)]