20074960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{509}}^1$

素因数の和:568

約数の個数: 80

約数和(自身を含む): 51224400

約数和(自身を除く): 31149440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 34, 40, 58, 68, 80, 85, 116, 136, 145, 170, 232, 272, 290, 340, 464, 493, 509, 580, 680, 986, 1018, 1160, 1360, 1972, 2036, 2320, 2465, 2545, 3944, 4072, 4930, 5090, 7888, 8144, 8653, 9860, 10180, 14761, 17306, 19720, 20360, 29522, 34612, 39440, 40720, 43265, 59044, 69224, 73805, 86530, 118088, 138448, 147610, 173060, 236176, 250937, 295220, 346120, 501874, 590440, 692240, 1003748, 1180880, 1254685, 2007496, 2509370, 4014992, 5018740, 10037480, 20074960]

約数ペア:

[(1, 20074960), (2, 10037480), (4, 5018740), (5, 4014992), (8, 2509370), (10, 2007496), (16, 1254685), (17, 1180880), (20, 1003748), (29, 692240), (34, 590440), (40, 501874), (58, 346120), (68, 295220), (80, 250937), (85, 236176), (116, 173060), (136, 147610), (145, 138448), (170, 118088), (232, 86530), (272, 73805), (290, 69224), (340, 59044), (464, 43265), (493, 40720), (509, 39440), (580, 34612), (680, 29522), (986, 20360), (1018, 19720), (1160, 17306), (1360, 14761), (1972, 10180), (2036, 9860), (2320, 8653), (2465, 8144), (2545, 7888), (3944, 5090), (4072, 4930)]