20180394

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:149

約数の個数: 128

約数和(自身を含む): 54432000

約数和(自身を除く): 34251606

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 19, 26, 27, 34, 38, 39, 51, 54, 57, 78, 89, 102, 114, 117, 153, 171, 178, 221, 234, 247, 267, 306, 323, 342, 351, 442, 459, 494, 513, 534, 646, 663, 702, 741, 801, 918, 969, 1026, 1157, 1326, 1482, 1513, 1602, 1691, 1938, 1989, 2223, 2314, 2403, 2907, 3026, 3382, 3471, 3978, 4199, 4446, 4539, 4806, 5073, 5814, 5967, 6669, 6942, 8398, 8721, 9078, 10146, 10413, 11934, 12597, 13338, 13617, 15219, 17442, 19669, 20826, 21983, 25194, 27234, 28747, 30438, 31239, 37791, 39338, 40851, 43966, 45657, 57494, 59007, 62478, 65949, 75582, 81702, 86241, 91314, 113373, 118014, 131898, 172482, 177021, 197847, 226746, 258723, 354042, 373711, 395694, 517446, 531063, 593541, 747422, 776169, 1062126, 1121133, 1187082, 1552338, 2242266, 3363399, 6726798, 10090197, 20180394]

約数ペア:

[(1, 20180394), (2, 10090197), (3, 6726798), (6, 3363399), (9, 2242266), (13, 1552338), (17, 1187082), (18, 1121133), (19, 1062126), (26, 776169), (27, 747422), (34, 593541), (38, 531063), (39, 517446), (51, 395694), (54, 373711), (57, 354042), (78, 258723), (89, 226746), (102, 197847), (114, 177021), (117, 172482), (153, 131898), (171, 118014), (178, 113373), (221, 91314), (234, 86241), (247, 81702), (267, 75582), (306, 65949), (323, 62478), (342, 59007), (351, 57494), (442, 45657), (459, 43966), (494, 40851), (513, 39338), (534, 37791), (646, 31239), (663, 30438), (702, 28747), (741, 27234), (801, 25194), (918, 21983), (969, 20826), (1026, 19669), (1157, 17442), (1326, 15219), (1482, 13617), (1513, 13338), (1602, 12597), (1691, 11934), (1938, 10413), (1989, 10146), (2223, 9078), (2314, 8721), (2403, 8398), (2907, 6942), (3026, 6669), (3382, 5967), (3471, 5814), (3978, 5073), (4199, 4806), (4446, 4539)]