80781660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{467}}^1$

素因数の和:544

約数の個数: 108

約数和(自身を含む): 253739304

約数和(自身を除く): 172957644

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 467, 558, 620, 930, 934, 961, 1116, 1395, 1401, 1860, 1868, 1922, 2335, 2790, 2802, 2883, 3844, 4203, 4670, 4805, 5580, 5604, 5766, 7005, 8406, 8649, 9340, 9610, 11532, 14010, 14415, 14477, 16812, 17298, 19220, 21015, 28020, 28830, 28954, 34596, 42030, 43245, 43431, 57660, 57908, 72385, 84060, 86490, 86862, 130293, 144770, 172980, 173724, 217155, 260586, 289540, 434310, 448787, 521172, 651465, 868620, 897574, 1302930, 1346361, 1795148, 2243935, 2605860, 2692722, 4039083, 4487870, 5385444, 6731805, 8078166, 8975740, 13463610, 16156332, 20195415, 26927220, 40390830, 80781660]

約数ペア:

[(1, 80781660), (2, 40390830), (3, 26927220), (4, 20195415), (5, 16156332), (6, 13463610), (9, 8975740), (10, 8078166), (12, 6731805), (15, 5385444), (18, 4487870), (20, 4039083), (30, 2692722), (31, 2605860), (36, 2243935), (45, 1795148), (60, 1346361), (62, 1302930), (90, 897574), (93, 868620), (124, 651465), (155, 521172), (180, 448787), (186, 434310), (279, 289540), (310, 260586), (372, 217155), (465, 173724), (467, 172980), (558, 144770), (620, 130293), (930, 86862), (934, 86490), (961, 84060), (1116, 72385), (1395, 57908), (1401, 57660), (1860, 43431), (1868, 43245), (1922, 42030), (2335, 34596), (2790, 28954), (2802, 28830), (2883, 28020), (3844, 21015), (4203, 19220), (4670, 17298), (4805, 16812), (5580, 14477), (5604, 14415), (5766, 14010), (7005, 11532), (8406, 9610), (8649, 9340)]