26231220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2389}}^1$

素因数の和:2465

約数の個数: 72

約数和(自身を含む): 80906280

約数和(自身を除く): 54675060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2389, 2745, 3660, 4778, 5490, 7167, 9556, 10980, 11945, 14334, 21501, 23890, 28668, 35835, 43002, 47780, 71670, 86004, 107505, 143340, 145729, 215010, 291458, 430020, 437187, 582916, 728645, 874374, 1311561, 1457290, 1748748, 2185935, 2623122, 2914580, 4371870, 5246244, 6557805, 8743740, 13115610, 26231220]

約数ペア:

[(1, 26231220), (2, 13115610), (3, 8743740), (4, 6557805), (5, 5246244), (6, 4371870), (9, 2914580), (10, 2623122), (12, 2185935), (15, 1748748), (18, 1457290), (20, 1311561), (30, 874374), (36, 728645), (45, 582916), (60, 437187), (61, 430020), (90, 291458), (122, 215010), (180, 145729), (183, 143340), (244, 107505), (305, 86004), (366, 71670), (549, 47780), (610, 43002), (732, 35835), (915, 28668), (1098, 23890), (1220, 21501), (1830, 14334), (2196, 11945), (2389, 10980), (2745, 9556), (3660, 7167), (4778, 5490)]