260008160

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{89}}^1$

素因数の和:185

約数の個数: 144

約数和(自身を含む): 675637200

約数和(自身を除く): 415629040

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 76, 80, 89, 95, 124, 152, 155, 160, 178, 190, 248, 304, 310, 356, 380, 445, 496, 589, 608, 620, 712, 760, 890, 961, 992, 1178, 1240, 1424, 1520, 1691, 1780, 1922, 2356, 2480, 2759, 2848, 2945, 3040, 3382, 3560, 3844, 4712, 4805, 4960, 5518, 5890, 6764, 7120, 7688, 8455, 9424, 9610, 11036, 11780, 13528, 13795, 14240, 15376, 16910, 18259, 18848, 19220, 22072, 23560, 27056, 27590, 30752, 33820, 36518, 38440, 44144, 47120, 52421, 54112, 55180, 67640, 73036, 76880, 85529, 88288, 91295, 94240, 104842, 110360, 135280, 146072, 153760, 171058, 182590, 209684, 220720, 262105, 270560, 292144, 342116, 365180, 419368, 427645, 441440, 524210, 584288, 684232, 730360, 838736, 855290, 1048420, 1368464, 1460720, 1625051, 1677472, 1710580, 2096840, 2736928, 2921440, 3250102, 3421160, 4193680, 6500204, 6842320, 8125255, 8387360, 13000408, 13684640, 16250510, 26000816, 32501020, 52001632, 65002040, 130004080, 260008160]

約数ペア:

[(1, 260008160), (2, 130004080), (4, 65002040), (5, 52001632), (8, 32501020), (10, 26000816), (16, 16250510), (19, 13684640), (20, 13000408), (31, 8387360), (32, 8125255), (38, 6842320), (40, 6500204), (62, 4193680), (76, 3421160), (80, 3250102), (89, 2921440), (95, 2736928), (124, 2096840), (152, 1710580), (155, 1677472), (160, 1625051), (178, 1460720), (190, 1368464), (248, 1048420), (304, 855290), (310, 838736), (356, 730360), (380, 684232), (445, 584288), (496, 524210), (589, 441440), (608, 427645), (620, 419368), (712, 365180), (760, 342116), (890, 292144), (961, 270560), (992, 262105), (1178, 220720), (1240, 209684), (1424, 182590), (1520, 171058), (1691, 153760), (1780, 146072), (1922, 135280), (2356, 110360), (2480, 104842), (2759, 94240), (2848, 91295), (2945, 88288), (3040, 85529), (3382, 76880), (3560, 73036), (3844, 67640), (4712, 55180), (4805, 54112), (4960, 52421), (5518, 47120), (5890, 44144), (6764, 38440), (7120, 36518), (7688, 33820), (8455, 30752), (9424, 27590), (9610, 27056), (11036, 23560), (11780, 22072), (13528, 19220), (13795, 18848), (14240, 18259), (15376, 16910)]