1720728160

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^3$

素因数の和:146

約数の個数: 144

約数和(自身を含む): 4433450112

約数和(自身を除く): 2712721952

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 76, 80, 95, 124, 152, 155, 160, 190, 248, 304, 310, 361, 380, 496, 589, 608, 620, 722, 760, 961, 992, 1178, 1240, 1444, 1520, 1805, 1922, 2356, 2480, 2888, 2945, 3040, 3610, 3844, 4712, 4805, 4960, 5776, 5890, 7220, 7688, 9424, 9610, 11191, 11552, 11780, 14440, 15376, 18259, 18848, 19220, 22382, 23560, 28880, 29791, 30752, 36518, 38440, 44764, 47120, 55955, 57760, 59582, 73036, 76880, 89528, 91295, 94240, 111910, 119164, 146072, 148955, 153760, 179056, 182590, 223820, 238328, 292144, 297910, 346921, 358112, 365180, 447640, 476656, 566029, 584288, 595820, 693842, 730360, 895280, 953312, 1132058, 1191640, 1387684, 1460720, 1734605, 1790560, 2264116, 2383280, 2775368, 2830145, 2921440, 3469210, 4528232, 4766560, 5550736, 5660290, 6938420, 9056464, 10754551, 11101472, 11320580, 13876840, 18112928, 21509102, 22641160, 27753680, 43018204, 45282320, 53772755, 55507360, 86036408, 90564640, 107545510, 172072816, 215091020, 344145632, 430182040, 860364080, 1720728160]

約数ペア:

[(1, 1720728160), (2, 860364080), (4, 430182040), (5, 344145632), (8, 215091020), (10, 172072816), (16, 107545510), (19, 90564640), (20, 86036408), (31, 55507360), (32, 53772755), (38, 45282320), (40, 43018204), (62, 27753680), (76, 22641160), (80, 21509102), (95, 18112928), (124, 13876840), (152, 11320580), (155, 11101472), (160, 10754551), (190, 9056464), (248, 6938420), (304, 5660290), (310, 5550736), (361, 4766560), (380, 4528232), (496, 3469210), (589, 2921440), (608, 2830145), (620, 2775368), (722, 2383280), (760, 2264116), (961, 1790560), (992, 1734605), (1178, 1460720), (1240, 1387684), (1444, 1191640), (1520, 1132058), (1805, 953312), (1922, 895280), (2356, 730360), (2480, 693842), (2888, 595820), (2945, 584288), (3040, 566029), (3610, 476656), (3844, 447640), (4712, 365180), (4805, 358112), (4960, 346921), (5776, 297910), (5890, 292144), (7220, 238328), (7688, 223820), (9424, 182590), (9610, 179056), (11191, 153760), (11552, 148955), (11780, 146072), (14440, 119164), (15376, 111910), (18259, 94240), (18848, 91295), (19220, 89528), (22382, 76880), (23560, 73036), (28880, 59582), (29791, 57760), (30752, 55955), (36518, 47120), (38440, 44764)]