1644144640

素因数分解:

$2^{11}\times 5^1\times {\mathrm{307}}^1\times {\mathrm{523}}^1$

素因数の和:857

約数の個数: 96

約数和(自身を含む): 3965401440

約数和(自身を除く): 2321256800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 307, 320, 512, 523, 614, 640, 1024, 1046, 1228, 1280, 1535, 2048, 2092, 2456, 2560, 2615, 3070, 4184, 4912, 5120, 5230, 6140, 8368, 9824, 10240, 10460, 12280, 16736, 19648, 20920, 24560, 33472, 39296, 41840, 49120, 66944, 78592, 83680, 98240, 133888, 157184, 160561, 167360, 196480, 267776, 314368, 321122, 334720, 392960, 535552, 628736, 642244, 669440, 785920, 802805, 1071104, 1284488, 1338880, 1571840, 1605610, 2568976, 2677760, 3143680, 3211220, 5137952, 5355520, 6422440, 10275904, 12844880, 20551808, 25689760, 41103616, 51379520, 82207232, 102759040, 164414464, 205518080, 328828928, 411036160, 822072320, 1644144640]

約数ペア:

[(1, 1644144640), (2, 822072320), (4, 411036160), (5, 328828928), (8, 205518080), (10, 164414464), (16, 102759040), (20, 82207232), (32, 51379520), (40, 41103616), (64, 25689760), (80, 20551808), (128, 12844880), (160, 10275904), (256, 6422440), (307, 5355520), (320, 5137952), (512, 3211220), (523, 3143680), (614, 2677760), (640, 2568976), (1024, 1605610), (1046, 1571840), (1228, 1338880), (1280, 1284488), (1535, 1071104), (2048, 802805), (2092, 785920), (2456, 669440), (2560, 642244), (2615, 628736), (3070, 535552), (4184, 392960), (4912, 334720), (5120, 321122), (5230, 314368), (6140, 267776), (8368, 196480), (9824, 167360), (10240, 160561), (10460, 157184), (12280, 133888), (16736, 98240), (19648, 83680), (20920, 78592), (24560, 66944), (33472, 49120), (39296, 41840)]