208703222

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{521}}^1$

素因数の和:645

約数の個数: 64

約数和(自身を含む): 404103168

約数和(自身を除く): 195399946

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 71, 91, 142, 182, 217, 403, 434, 497, 521, 806, 923, 994, 1042, 1846, 2201, 2821, 3647, 4402, 5642, 6461, 6773, 7294, 12922, 13546, 15407, 16151, 28613, 30814, 32302, 36991, 47411, 57226, 73982, 94822, 113057, 200291, 209963, 226114, 258937, 400582, 419926, 480883, 517874, 961766, 1146721, 1469741, 2293442, 2939482, 3366181, 6732362, 8027047, 14907373, 16054094, 29814746, 104351611, 208703222]

約数ペア:

[(1, 208703222), (2, 104351611), (7, 29814746), (13, 16054094), (14, 14907373), (26, 8027047), (31, 6732362), (62, 3366181), (71, 2939482), (91, 2293442), (142, 1469741), (182, 1146721), (217, 961766), (403, 517874), (434, 480883), (497, 419926), (521, 400582), (806, 258937), (923, 226114), (994, 209963), (1042, 200291), (1846, 113057), (2201, 94822), (2821, 73982), (3647, 57226), (4402, 47411), (5642, 36991), (6461, 32302), (6773, 30814), (7294, 28613), (12922, 16151), (13546, 15407)]