20115760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2113}}^1$

素因数の和:2150

約数の個数: 80

約数和(自身を含む): 56621376

約数和(自身を除く): 36505616

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 170, 238, 272, 280, 340, 476, 560, 595, 680, 952, 1190, 1360, 1904, 2113, 2380, 4226, 4760, 8452, 9520, 10565, 14791, 16904, 21130, 29582, 33808, 35921, 42260, 59164, 71842, 73955, 84520, 118328, 143684, 147910, 169040, 179605, 236656, 251447, 287368, 295820, 359210, 502894, 574736, 591640, 718420, 1005788, 1183280, 1257235, 1436840, 2011576, 2514470, 2873680, 4023152, 5028940, 10057880, 20115760]

約数ペア:

[(1, 20115760), (2, 10057880), (4, 5028940), (5, 4023152), (7, 2873680), (8, 2514470), (10, 2011576), (14, 1436840), (16, 1257235), (17, 1183280), (20, 1005788), (28, 718420), (34, 591640), (35, 574736), (40, 502894), (56, 359210), (68, 295820), (70, 287368), (80, 251447), (85, 236656), (112, 179605), (119, 169040), (136, 147910), (140, 143684), (170, 118328), (238, 84520), (272, 73955), (280, 71842), (340, 59164), (476, 42260), (560, 35921), (595, 33808), (680, 29582), (952, 21130), (1190, 16904), (1360, 14791), (1904, 10565), (2113, 9520), (2380, 8452), (4226, 4760)]