128538880

素因数分解:

$2^8\times 5^1\times {\mathrm{137}}^1\times {\mathrm{733}}^1$

素因数の和:891

約数の個数: 72

約数和(自身を含む): 310561272

約数和(自身を除く): 182022392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 137, 160, 256, 274, 320, 548, 640, 685, 733, 1096, 1280, 1370, 1466, 2192, 2740, 2932, 3665, 4384, 5480, 5864, 7330, 8768, 10960, 11728, 14660, 17536, 21920, 23456, 29320, 35072, 43840, 46912, 58640, 87680, 93824, 100421, 117280, 175360, 187648, 200842, 234560, 401684, 469120, 502105, 803368, 938240, 1004210, 1606736, 2008420, 3213472, 4016840, 6426944, 8033680, 12853888, 16067360, 25707776, 32134720, 64269440, 128538880]

約数ペア:

[(1, 128538880), (2, 64269440), (4, 32134720), (5, 25707776), (8, 16067360), (10, 12853888), (16, 8033680), (20, 6426944), (32, 4016840), (40, 3213472), (64, 2008420), (80, 1606736), (128, 1004210), (137, 938240), (160, 803368), (256, 502105), (274, 469120), (320, 401684), (548, 234560), (640, 200842), (685, 187648), (733, 175360), (1096, 117280), (1280, 100421), (1370, 93824), (1466, 87680), (2192, 58640), (2740, 46912), (2932, 43840), (3665, 35072), (4384, 29320), (5480, 23456), (5864, 21920), (7330, 17536), (8768, 14660), (10960, 11728)]