81979680

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:227

約数の個数: 192

約数和(自身を含む): 277603200

約数和(自身を除く): 195623520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 76, 80, 89, 95, 96, 101, 114, 120, 152, 160, 178, 190, 202, 228, 240, 267, 285, 303, 304, 356, 380, 404, 445, 456, 480, 505, 534, 570, 606, 608, 712, 760, 808, 890, 912, 1010, 1068, 1140, 1212, 1335, 1424, 1515, 1520, 1616, 1691, 1780, 1824, 1919, 2020, 2136, 2280, 2424, 2670, 2848, 3030, 3040, 3232, 3382, 3560, 3838, 4040, 4272, 4560, 4848, 5073, 5340, 5757, 6060, 6764, 7120, 7676, 8080, 8455, 8544, 8989, 9120, 9595, 9696, 10146, 10680, 11514, 12120, 13528, 14240, 15352, 16160, 16910, 17978, 19190, 20292, 21360, 23028, 24240, 25365, 26967, 27056, 28785, 30704, 33820, 35956, 38380, 40584, 42720, 44945, 46056, 48480, 50730, 53934, 54112, 57570, 61408, 67640, 71912, 76760, 81168, 89890, 92112, 101460, 107868, 115140, 134835, 135280, 143824, 153520, 162336, 170791, 179780, 184224, 202920, 215736, 230280, 269670, 270560, 287648, 307040, 341582, 359560, 405840, 431472, 460560, 512373, 539340, 683164, 719120, 811680, 853955, 862944, 921120, 1024746, 1078680, 1366328, 1438240, 1707910, 2049492, 2157360, 2561865, 2732656, 3415820, 4098984, 4314720, 5123730, 5465312, 6831640, 8197968, 10247460, 13663280, 16395936, 20494920, 27326560, 40989840, 81979680]

約数ペア:

[(1, 81979680), (2, 40989840), (3, 27326560), (4, 20494920), (5, 16395936), (6, 13663280), (8, 10247460), (10, 8197968), (12, 6831640), (15, 5465312), (16, 5123730), (19, 4314720), (20, 4098984), (24, 3415820), (30, 2732656), (32, 2561865), (38, 2157360), (40, 2049492), (48, 1707910), (57, 1438240), (60, 1366328), (76, 1078680), (80, 1024746), (89, 921120), (95, 862944), (96, 853955), (101, 811680), (114, 719120), (120, 683164), (152, 539340), (160, 512373), (178, 460560), (190, 431472), (202, 405840), (228, 359560), (240, 341582), (267, 307040), (285, 287648), (303, 270560), (304, 269670), (356, 230280), (380, 215736), (404, 202920), (445, 184224), (456, 179780), (480, 170791), (505, 162336), (534, 153520), (570, 143824), (606, 135280), (608, 134835), (712, 115140), (760, 107868), (808, 101460), (890, 92112), (912, 89890), (1010, 81168), (1068, 76760), (1140, 71912), (1212, 67640), (1335, 61408), (1424, 57570), (1515, 54112), (1520, 53934), (1616, 50730), (1691, 48480), (1780, 46056), (1824, 44945), (1919, 42720), (2020, 40584), (2136, 38380), (2280, 35956), (2424, 33820), (2670, 30704), (2848, 28785), (3030, 27056), (3040, 26967), (3232, 25365), (3382, 24240), (3560, 23028), (3838, 21360), (4040, 20292), (4272, 19190), (4560, 17978), (4848, 16910), (5073, 16160), (5340, 15352), (5757, 14240), (6060, 13528), (6764, 12120), (7120, 11514), (7676, 10680), (8080, 10146), (8455, 9696), (8544, 9595), (8989, 9120)]