12842240

素因数分解:

$2^8\times 5^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:227

約数の個数: 72

約数和(自身を含む): 31395840

約数和(自身を除く): 18553600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 127, 128, 158, 160, 254, 256, 316, 320, 395, 508, 632, 635, 640, 790, 1016, 1264, 1270, 1280, 1580, 2032, 2528, 2540, 3160, 4064, 5056, 5080, 6320, 8128, 10033, 10112, 10160, 12640, 16256, 20066, 20224, 20320, 25280, 32512, 40132, 40640, 50165, 50560, 80264, 81280, 100330, 101120, 160528, 162560, 200660, 321056, 401320, 642112, 802640, 1284224, 1605280, 2568448, 3210560, 6421120, 12842240]

約数ペア:

[(1, 12842240), (2, 6421120), (4, 3210560), (5, 2568448), (8, 1605280), (10, 1284224), (16, 802640), (20, 642112), (32, 401320), (40, 321056), (64, 200660), (79, 162560), (80, 160528), (127, 101120), (128, 100330), (158, 81280), (160, 80264), (254, 50560), (256, 50165), (316, 40640), (320, 40132), (395, 32512), (508, 25280), (632, 20320), (635, 20224), (640, 20066), (790, 16256), (1016, 12640), (1264, 10160), (1270, 10112), (1280, 10033), (1580, 8128), (2032, 6320), (2528, 5080), (2540, 5056), (3160, 4064)]