20187156940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{21107}}^1$

素因数の和:21259

約数の個数: 96

約数和(自身を含む): 46915485120

約数和(自身を除く): 26728328180

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 97, 116, 145, 170, 194, 290, 340, 388, 485, 493, 580, 970, 986, 1649, 1940, 1972, 2465, 2813, 3298, 4930, 5626, 6596, 8245, 9860, 11252, 14065, 16490, 21107, 28130, 32980, 42214, 47821, 56260, 84428, 95642, 105535, 191284, 211070, 239105, 358819, 422140, 478210, 612103, 717638, 956420, 1224206, 1435276, 1794095, 2047379, 2448412, 3060515, 3588190, 4094758, 6121030, 7176380, 8189516, 10236895, 10405751, 12242060, 20473790, 20811502, 34805443, 40947580, 41623004, 52028755, 59373991, 69610886, 104057510, 118747982, 139221772, 174027215, 208115020, 237495964, 296869955, 348054430, 593739910, 696108860, 1009357847, 1187479820, 2018715694, 4037431388, 5046789235, 10093578470, 20187156940]

約数ペア:

[(1, 20187156940), (2, 10093578470), (4, 5046789235), (5, 4037431388), (10, 2018715694), (17, 1187479820), (20, 1009357847), (29, 696108860), (34, 593739910), (58, 348054430), (68, 296869955), (85, 237495964), (97, 208115020), (116, 174027215), (145, 139221772), (170, 118747982), (194, 104057510), (290, 69610886), (340, 59373991), (388, 52028755), (485, 41623004), (493, 40947580), (580, 34805443), (970, 20811502), (986, 20473790), (1649, 12242060), (1940, 10405751), (1972, 10236895), (2465, 8189516), (2813, 7176380), (3298, 6121030), (4930, 4094758), (5626, 3588190), (6596, 3060515), (8245, 2448412), (9860, 2047379), (11252, 1794095), (14065, 1435276), (16490, 1224206), (21107, 956420), (28130, 717638), (32980, 612103), (42214, 478210), (47821, 422140), (56260, 358819), (84428, 239105), (95642, 211070), (105535, 191284)]