20690240

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:160

約数の個数: 112

約数和(自身を含む): 53766720

約数和(自身を除く): 33076480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 41, 64, 76, 80, 82, 83, 95, 152, 160, 164, 166, 190, 205, 304, 320, 328, 332, 380, 410, 415, 608, 656, 664, 760, 779, 820, 830, 1216, 1312, 1328, 1520, 1558, 1577, 1640, 1660, 2624, 2656, 3040, 3116, 3154, 3280, 3320, 3403, 3895, 5312, 6080, 6232, 6308, 6560, 6640, 6806, 7790, 7885, 12464, 12616, 13120, 13280, 13612, 15580, 15770, 17015, 24928, 25232, 26560, 27224, 31160, 31540, 34030, 49856, 50464, 54448, 62320, 63080, 64657, 68060, 100928, 108896, 124640, 126160, 129314, 136120, 217792, 249280, 252320, 258628, 272240, 323285, 504640, 517256, 544480, 646570, 1034512, 1088960, 1293140, 2069024, 2586280, 4138048, 5172560, 10345120, 20690240]

約数ペア:

[(1, 20690240), (2, 10345120), (4, 5172560), (5, 4138048), (8, 2586280), (10, 2069024), (16, 1293140), (19, 1088960), (20, 1034512), (32, 646570), (38, 544480), (40, 517256), (41, 504640), (64, 323285), (76, 272240), (80, 258628), (82, 252320), (83, 249280), (95, 217792), (152, 136120), (160, 129314), (164, 126160), (166, 124640), (190, 108896), (205, 100928), (304, 68060), (320, 64657), (328, 63080), (332, 62320), (380, 54448), (410, 50464), (415, 49856), (608, 34030), (656, 31540), (664, 31160), (760, 27224), (779, 26560), (820, 25232), (830, 24928), (1216, 17015), (1312, 15770), (1328, 15580), (1520, 13612), (1558, 13280), (1577, 13120), (1640, 12616), (1660, 12464), (2624, 7885), (2656, 7790), (3040, 6806), (3116, 6640), (3154, 6560), (3280, 6308), (3320, 6232), (3403, 6080), (3895, 5312)]