71782060

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{823}}^1$

素因数の和:935

約数の個数: 72

約数和(自身を含む): 177539040

約数和(自身を除く): 105756980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 89, 98, 140, 178, 196, 245, 356, 445, 490, 623, 823, 890, 980, 1246, 1646, 1780, 2492, 3115, 3292, 4115, 4361, 5761, 6230, 8230, 8722, 11522, 12460, 16460, 17444, 21805, 23044, 28805, 40327, 43610, 57610, 73247, 80654, 87220, 115220, 146494, 161308, 201635, 292988, 366235, 403270, 512729, 732470, 806540, 1025458, 1464940, 2050916, 2563645, 3589103, 5127290, 7178206, 10254580, 14356412, 17945515, 35891030, 71782060]

約数ペア:

[(1, 71782060), (2, 35891030), (4, 17945515), (5, 14356412), (7, 10254580), (10, 7178206), (14, 5127290), (20, 3589103), (28, 2563645), (35, 2050916), (49, 1464940), (70, 1025458), (89, 806540), (98, 732470), (140, 512729), (178, 403270), (196, 366235), (245, 292988), (356, 201635), (445, 161308), (490, 146494), (623, 115220), (823, 87220), (890, 80654), (980, 73247), (1246, 57610), (1646, 43610), (1780, 40327), (2492, 28805), (3115, 23044), (3292, 21805), (4115, 17444), (4361, 16460), (5761, 12460), (6230, 11522), (8230, 8722)]