128345456

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{13619}}^1$

素因数の和:13677

約数の個数: 40

約数和(自身を含む): 270220800

約数和(自身を除く): 141875344

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 152, 248, 304, 496, 589, 1178, 2356, 4712, 9424, 13619, 27238, 54476, 108952, 217904, 258761, 422189, 517522, 844378, 1035044, 1688756, 2070088, 3377512, 4140176, 6755024, 8021591, 16043182, 32086364, 64172728, 128345456]

約数ペア:

[(1, 128345456), (2, 64172728), (4, 32086364), (8, 16043182), (16, 8021591), (19, 6755024), (31, 4140176), (38, 3377512), (62, 2070088), (76, 1688756), (124, 1035044), (152, 844378), (248, 517522), (304, 422189), (496, 258761), (589, 217904), (1178, 108952), (2356, 54476), (4712, 27238), (9424, 13619)]