80978716

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:303

約数の個数: 72

約数和(自身を含む): 178110240

約数和(自身を除く): 97131524

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 109, 157, 169, 182, 218, 314, 338, 364, 436, 628, 676, 763, 1099, 1183, 1417, 1526, 2041, 2198, 2366, 2834, 3052, 4082, 4396, 4732, 5668, 8164, 9919, 14287, 17113, 18421, 19838, 26533, 28574, 34226, 36842, 39676, 53066, 57148, 68452, 73684, 106132, 119791, 128947, 185731, 222469, 239582, 257894, 371462, 444938, 479164, 515788, 742924, 889876, 1557283, 2892097, 3114566, 5784194, 6229132, 11568388, 20244679, 40489358, 80978716]

約数ペア:

[(1, 80978716), (2, 40489358), (4, 20244679), (7, 11568388), (13, 6229132), (14, 5784194), (26, 3114566), (28, 2892097), (52, 1557283), (91, 889876), (109, 742924), (157, 515788), (169, 479164), (182, 444938), (218, 371462), (314, 257894), (338, 239582), (364, 222469), (436, 185731), (628, 128947), (676, 119791), (763, 106132), (1099, 73684), (1183, 68452), (1417, 57148), (1526, 53066), (2041, 39676), (2198, 36842), (2366, 34226), (2834, 28574), (3052, 26533), (4082, 19838), (4396, 18421), (4732, 17113), (5668, 14287), (8164, 9919)]