28909120

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1481}}^1$

素因数の和:1559

約数の個数: 56

約数和(自身を含む): 70015608

約数和(自身を除く): 41106488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 160, 244, 305, 320, 488, 610, 976, 1220, 1481, 1952, 2440, 2962, 3904, 4880, 5924, 7405, 9760, 11848, 14810, 19520, 23696, 29620, 47392, 59240, 90341, 94784, 118480, 180682, 236960, 361364, 451705, 473920, 722728, 903410, 1445456, 1806820, 2890912, 3613640, 5781824, 7227280, 14454560, 28909120]

約数ペア:

[(1, 28909120), (2, 14454560), (4, 7227280), (5, 5781824), (8, 3613640), (10, 2890912), (16, 1806820), (20, 1445456), (32, 903410), (40, 722728), (61, 473920), (64, 451705), (80, 361364), (122, 236960), (160, 180682), (244, 118480), (305, 94784), (320, 90341), (488, 59240), (610, 47392), (976, 29620), (1220, 23696), (1481, 19520), (1952, 14810), (2440, 11848), (2962, 9760), (3904, 7405), (4880, 5924)]