128921870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:558

約数の個数: 96

約数和(自身を含む): 301529088

約数和(自身を除く): 172607218

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 31, 35, 55, 62, 70, 77, 110, 121, 154, 155, 217, 242, 310, 341, 385, 434, 491, 605, 682, 770, 847, 982, 1085, 1210, 1694, 1705, 2170, 2387, 2455, 3410, 3437, 3751, 4235, 4774, 4910, 5401, 6874, 7502, 8470, 10802, 11935, 15221, 17185, 18755, 23870, 26257, 27005, 30442, 34370, 37510, 37807, 52514, 54010, 59411, 75614, 76105, 106547, 118822, 131285, 152210, 167431, 189035, 213094, 262570, 297055, 334862, 378070, 415877, 532735, 594110, 831754, 837155, 1065470, 1172017, 1674310, 1841741, 2079385, 2344034, 3683482, 4158770, 5860085, 9208705, 11720170, 12892187, 18417410, 25784374, 64460935, 128921870]

約数ペア:

[(1, 128921870), (2, 64460935), (5, 25784374), (7, 18417410), (10, 12892187), (11, 11720170), (14, 9208705), (22, 5860085), (31, 4158770), (35, 3683482), (55, 2344034), (62, 2079385), (70, 1841741), (77, 1674310), (110, 1172017), (121, 1065470), (154, 837155), (155, 831754), (217, 594110), (242, 532735), (310, 415877), (341, 378070), (385, 334862), (434, 297055), (491, 262570), (605, 213094), (682, 189035), (770, 167431), (847, 152210), (982, 131285), (1085, 118822), (1210, 106547), (1694, 76105), (1705, 75614), (2170, 59411), (2387, 54010), (2455, 52514), (3410, 37807), (3437, 37510), (3751, 34370), (4235, 30442), (4774, 27005), (4910, 26257), (5401, 23870), (6874, 18755), (7502, 17185), (8470, 15221), (10802, 11935)]