128387454

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1$

素因数の和:425

約数の個数: 64

約数和(自身を含む): 284497920

約数和(自身を除く): 156110466

約数列:

[1, 2, 3, 6, 13, 26, 39, 71, 78, 97, 142, 194, 213, 239, 291, 426, 478, 582, 717, 923, 1261, 1434, 1846, 2522, 2769, 3107, 3783, 5538, 6214, 6887, 7566, 9321, 13774, 16969, 18642, 20661, 23183, 33938, 41322, 46366, 50907, 69549, 89531, 101814, 139098, 179062, 220597, 268593, 301379, 441194, 537186, 602758, 661791, 904137, 1323582, 1645993, 1808274, 3291986, 4937979, 9875958, 21397909, 42795818, 64193727, 128387454]

約数ペア:

[(1, 128387454), (2, 64193727), (3, 42795818), (6, 21397909), (13, 9875958), (26, 4937979), (39, 3291986), (71, 1808274), (78, 1645993), (97, 1323582), (142, 904137), (194, 661791), (213, 602758), (239, 537186), (291, 441194), (426, 301379), (478, 268593), (582, 220597), (717, 179062), (923, 139098), (1261, 101814), (1434, 89531), (1846, 69549), (2522, 50907), (2769, 46366), (3107, 41322), (3783, 33938), (5538, 23183), (6214, 20661), (6887, 18642), (7566, 16969), (9321, 13774)]