818748

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{19}}^2$

素因数の和:61

約数の個数: 90

約数和(自身を含む): 2581656

約数和(自身を除く): 1762908

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 27, 28, 36, 38, 42, 54, 57, 63, 76, 81, 84, 108, 114, 126, 133, 162, 171, 189, 228, 252, 266, 324, 342, 361, 378, 399, 513, 532, 567, 684, 722, 756, 798, 1026, 1083, 1134, 1197, 1444, 1539, 1596, 2052, 2166, 2268, 2394, 2527, 3078, 3249, 3591, 4332, 4788, 5054, 6156, 6498, 7182, 7581, 9747, 10108, 10773, 12996, 14364, 15162, 19494, 21546, 22743, 29241, 30324, 38988, 43092, 45486, 58482, 68229, 90972, 116964, 136458, 204687, 272916, 409374, 818748]

約数ペア:

[(1, 818748), (2, 409374), (3, 272916), (4, 204687), (6, 136458), (7, 116964), (9, 90972), (12, 68229), (14, 58482), (18, 45486), (19, 43092), (21, 38988), (27, 30324), (28, 29241), (36, 22743), (38, 21546), (42, 19494), (54, 15162), (57, 14364), (63, 12996), (76, 10773), (81, 10108), (84, 9747), (108, 7581), (114, 7182), (126, 6498), (133, 6156), (162, 5054), (171, 4788), (189, 4332), (228, 3591), (252, 3249), (266, 3078), (324, 2527), (342, 2394), (361, 2268), (378, 2166), (399, 2052), (513, 1596), (532, 1539), (567, 1444), (684, 1197), (722, 1134), (756, 1083), (798, 1026)]