31105690

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:260

約数の個数: 96

約数和(自身を含む): 73872000

約数和(自身を除く): 42766310

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 29, 35, 49, 55, 58, 70, 77, 98, 110, 145, 154, 199, 203, 245, 290, 319, 385, 398, 406, 490, 539, 638, 770, 995, 1015, 1078, 1393, 1421, 1595, 1990, 2030, 2189, 2233, 2695, 2786, 2842, 3190, 4378, 4466, 5390, 5771, 6965, 7105, 9751, 10945, 11165, 11542, 13930, 14210, 15323, 15631, 19502, 21890, 22330, 28855, 30646, 31262, 40397, 48755, 57710, 63481, 76615, 78155, 80794, 97510, 107261, 126962, 153230, 156310, 201985, 214522, 282779, 317405, 403970, 444367, 536305, 565558, 634810, 888734, 1072610, 1413895, 2221835, 2827790, 3110569, 4443670, 6221138, 15552845, 31105690]

約数ペア:

[(1, 31105690), (2, 15552845), (5, 6221138), (7, 4443670), (10, 3110569), (11, 2827790), (14, 2221835), (22, 1413895), (29, 1072610), (35, 888734), (49, 634810), (55, 565558), (58, 536305), (70, 444367), (77, 403970), (98, 317405), (110, 282779), (145, 214522), (154, 201985), (199, 156310), (203, 153230), (245, 126962), (290, 107261), (319, 97510), (385, 80794), (398, 78155), (406, 76615), (490, 63481), (539, 57710), (638, 48755), (770, 40397), (995, 31262), (1015, 30646), (1078, 28855), (1393, 22330), (1421, 21890), (1595, 19502), (1990, 15631), (2030, 15323), (2189, 14210), (2233, 13930), (2695, 11542), (2786, 11165), (2842, 10945), (3190, 9751), (4378, 7105), (4466, 6965), (5390, 5771)]