256571874

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{4201}}^1$

素因数の和:4257

約数の個数: 80

約数和(自身を含む): 640636920

約数和(自身を除く): 384065046

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 29, 39, 54, 58, 78, 81, 87, 117, 162, 174, 234, 261, 351, 377, 522, 702, 754, 783, 1053, 1131, 1566, 2106, 2262, 2349, 3393, 4201, 4698, 6786, 8402, 10179, 12603, 20358, 25206, 30537, 37809, 54613, 61074, 75618, 109226, 113427, 121829, 163839, 226854, 243658, 327678, 340281, 365487, 491517, 680562, 730974, 983034, 1096461, 1474551, 1583777, 2192922, 2949102, 3167554, 3289383, 4423653, 4751331, 6578766, 8847306, 9502662, 9868149, 14253993, 19736298, 28507986, 42761979, 85523958, 128285937, 256571874]

約数ペア:

[(1, 256571874), (2, 128285937), (3, 85523958), (6, 42761979), (9, 28507986), (13, 19736298), (18, 14253993), (26, 9868149), (27, 9502662), (29, 8847306), (39, 6578766), (54, 4751331), (58, 4423653), (78, 3289383), (81, 3167554), (87, 2949102), (117, 2192922), (162, 1583777), (174, 1474551), (234, 1096461), (261, 983034), (351, 730974), (377, 680562), (522, 491517), (702, 365487), (754, 340281), (783, 327678), (1053, 243658), (1131, 226854), (1566, 163839), (2106, 121829), (2262, 113427), (2349, 109226), (3393, 75618), (4201, 61074), (4698, 54613), (6786, 37809), (8402, 30537), (10179, 25206), (12603, 20358)]