1990109004

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^2\times {\mathrm{7589}}^1$

素因数の和:7691

約数の個数: 72

約数和(自身を含む): 5126407440

約数和(自身を除く): 3136298436

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 41, 52, 78, 82, 123, 156, 164, 246, 492, 533, 1066, 1599, 1681, 2132, 3198, 3362, 5043, 6396, 6724, 7589, 10086, 15178, 20172, 21853, 22767, 30356, 43706, 45534, 65559, 87412, 91068, 98657, 131118, 197314, 262236, 295971, 311149, 394628, 591942, 622298, 933447, 1183884, 1244596, 1866894, 3733788, 4044937, 8089874, 12134811, 12757109, 16179748, 24269622, 25514218, 38271327, 48539244, 51028436, 76542654, 153085308, 165842417, 331684834, 497527251, 663369668, 995054502, 1990109004]

約数ペア:

[(1, 1990109004), (2, 995054502), (3, 663369668), (4, 497527251), (6, 331684834), (12, 165842417), (13, 153085308), (26, 76542654), (39, 51028436), (41, 48539244), (52, 38271327), (78, 25514218), (82, 24269622), (123, 16179748), (156, 12757109), (164, 12134811), (246, 8089874), (492, 4044937), (533, 3733788), (1066, 1866894), (1599, 1244596), (1681, 1183884), (2132, 933447), (3198, 622298), (3362, 591942), (5043, 394628), (6396, 311149), (6724, 295971), (7589, 262236), (10086, 197314), (15178, 131118), (20172, 98657), (21853, 91068), (22767, 87412), (30356, 65559), (43706, 45534)]