31720312

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 68040000

約数和(自身を除く): 36319688

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 52, 89, 92, 104, 149, 178, 184, 298, 299, 356, 596, 598, 712, 1157, 1192, 1196, 1937, 2047, 2314, 2392, 3427, 3874, 4094, 4628, 6854, 7748, 8188, 9256, 13261, 13708, 15496, 16376, 26522, 26611, 27416, 44551, 53044, 53222, 89102, 106088, 106444, 172393, 178204, 212888, 305003, 344786, 356408, 610006, 689572, 1220012, 1379144, 2440024, 3965039, 7930078, 15860156, 31720312]

約数ペア:

[(1, 31720312), (2, 15860156), (4, 7930078), (8, 3965039), (13, 2440024), (23, 1379144), (26, 1220012), (46, 689572), (52, 610006), (89, 356408), (92, 344786), (104, 305003), (149, 212888), (178, 178204), (184, 172393), (298, 106444), (299, 106088), (356, 89102), (596, 53222), (598, 53044), (712, 44551), (1157, 27416), (1192, 26611), (1196, 26522), (1937, 16376), (2047, 15496), (2314, 13708), (2392, 13261), (3427, 9256), (3874, 8188), (4094, 7748), (4628, 6854)]