20513700

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{991}}^1$

素因数の和:1034

約数の個数: 108

約数和(自身を含む): 67162368

約数和(自身を除く): 46648668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 25, 30, 36, 45, 46, 50, 60, 69, 75, 90, 92, 100, 115, 138, 150, 180, 207, 225, 230, 276, 300, 345, 414, 450, 460, 575, 690, 828, 900, 991, 1035, 1150, 1380, 1725, 1982, 2070, 2300, 2973, 3450, 3964, 4140, 4955, 5175, 5946, 6900, 8919, 9910, 10350, 11892, 14865, 17838, 19820, 20700, 22793, 24775, 29730, 35676, 44595, 45586, 49550, 59460, 68379, 74325, 89190, 91172, 99100, 113965, 136758, 148650, 178380, 205137, 222975, 227930, 273516, 297300, 341895, 410274, 445950, 455860, 569825, 683790, 820548, 891900, 1025685, 1139650, 1367580, 1709475, 2051370, 2279300, 3418950, 4102740, 5128425, 6837900, 10256850, 20513700]

約数ペア:

[(1, 20513700), (2, 10256850), (3, 6837900), (4, 5128425), (5, 4102740), (6, 3418950), (9, 2279300), (10, 2051370), (12, 1709475), (15, 1367580), (18, 1139650), (20, 1025685), (23, 891900), (25, 820548), (30, 683790), (36, 569825), (45, 455860), (46, 445950), (50, 410274), (60, 341895), (69, 297300), (75, 273516), (90, 227930), (92, 222975), (100, 205137), (115, 178380), (138, 148650), (150, 136758), (180, 113965), (207, 99100), (225, 91172), (230, 89190), (276, 74325), (300, 68379), (345, 59460), (414, 49550), (450, 45586), (460, 44595), (575, 35676), (690, 29730), (828, 24775), (900, 22793), (991, 20700), (1035, 19820), (1150, 17838), (1380, 14865), (1725, 11892), (1982, 10350), (2070, 9910), (2300, 8919), (2973, 6900), (3450, 5946), (3964, 5175), (4140, 4955)]