1640142903

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1\times {\mathrm{257}}^1$

素因数の和:544

約数の個数: 64

約数和(自身を含む): 2668603392

約数和(自身を除く): 1028460489

約数列:

[1, 3, 7, 21, 23, 69, 73, 161, 181, 219, 257, 483, 511, 543, 771, 1267, 1533, 1679, 1799, 3801, 4163, 5037, 5397, 5911, 11753, 12489, 13213, 17733, 18761, 29141, 35259, 39639, 41377, 46517, 56283, 87423, 92491, 124131, 131327, 139551, 277473, 303899, 325619, 393981, 431503, 911697, 976857, 1069891, 1294509, 2127293, 3020521, 3209673, 3395741, 6381879, 7489237, 9061563, 10187223, 22467711, 23770187, 71310561, 78102043, 234306129, 546714301, 1640142903]

約数ペア:

[(1, 1640142903), (3, 546714301), (7, 234306129), (21, 78102043), (23, 71310561), (69, 23770187), (73, 22467711), (161, 10187223), (181, 9061563), (219, 7489237), (257, 6381879), (483, 3395741), (511, 3209673), (543, 3020521), (771, 2127293), (1267, 1294509), (1533, 1069891), (1679, 976857), (1799, 911697), (3801, 431503), (4163, 393981), (5037, 325619), (5397, 303899), (5911, 277473), (11753, 139551), (12489, 131327), (13213, 124131), (17733, 92491), (18761, 87423), (29141, 56283), (35259, 46517), (39639, 41377)]