898147840

素因数分解:

$2^9\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4441}}^1$

素因数の和:4543

約数の個数: 80

約数和(自身を含む): 2181199680

約数和(自身を除く): 1283051840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 256, 316, 320, 395, 512, 632, 640, 790, 1264, 1280, 1580, 2528, 2560, 3160, 4441, 5056, 6320, 8882, 10112, 12640, 17764, 20224, 22205, 25280, 35528, 40448, 44410, 50560, 71056, 88820, 101120, 142112, 177640, 202240, 284224, 350839, 355280, 568448, 701678, 710560, 1136896, 1403356, 1421120, 1754195, 2273792, 2806712, 2842240, 3508390, 5613424, 5684480, 7016780, 11226848, 11368960, 14033560, 22453696, 28067120, 44907392, 56134240, 89814784, 112268480, 179629568, 224536960, 449073920, 898147840]

約数ペア:

[(1, 898147840), (2, 449073920), (4, 224536960), (5, 179629568), (8, 112268480), (10, 89814784), (16, 56134240), (20, 44907392), (32, 28067120), (40, 22453696), (64, 14033560), (79, 11368960), (80, 11226848), (128, 7016780), (158, 5684480), (160, 5613424), (256, 3508390), (316, 2842240), (320, 2806712), (395, 2273792), (512, 1754195), (632, 1421120), (640, 1403356), (790, 1136896), (1264, 710560), (1280, 701678), (1580, 568448), (2528, 355280), (2560, 350839), (3160, 284224), (4441, 202240), (5056, 177640), (6320, 142112), (8882, 101120), (10112, 88820), (12640, 71056), (17764, 50560), (20224, 44410), (22205, 40448), (25280, 35528)]