81008070

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{821}}^1$

素因数の和:878

約数の個数: 128

約数和(自身を含む): 238629888

約数和(自身を除く): 157621818

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 23, 26, 30, 33, 39, 46, 55, 65, 66, 69, 78, 110, 115, 130, 138, 143, 165, 195, 230, 253, 286, 299, 330, 345, 390, 429, 506, 598, 690, 715, 759, 821, 858, 897, 1265, 1430, 1495, 1518, 1642, 1794, 2145, 2463, 2530, 2990, 3289, 3795, 4105, 4290, 4485, 4926, 6578, 7590, 8210, 8970, 9031, 9867, 10673, 12315, 16445, 18062, 18883, 19734, 21346, 24630, 27093, 32019, 32890, 37766, 45155, 49335, 53365, 54186, 56649, 64038, 90310, 94415, 98670, 106730, 113298, 117403, 135465, 160095, 188830, 207713, 234806, 245479, 270930, 283245, 320190, 352209, 415426, 490958, 566490, 587015, 623139, 704418, 736437, 1038565, 1174030, 1227395, 1246278, 1472874, 1761045, 2077130, 2454790, 2700269, 3115695, 3522090, 3682185, 5400538, 6231390, 7364370, 8100807, 13501345, 16201614, 27002690, 40504035, 81008070]

約数ペア:

[(1, 81008070), (2, 40504035), (3, 27002690), (5, 16201614), (6, 13501345), (10, 8100807), (11, 7364370), (13, 6231390), (15, 5400538), (22, 3682185), (23, 3522090), (26, 3115695), (30, 2700269), (33, 2454790), (39, 2077130), (46, 1761045), (55, 1472874), (65, 1246278), (66, 1227395), (69, 1174030), (78, 1038565), (110, 736437), (115, 704418), (130, 623139), (138, 587015), (143, 566490), (165, 490958), (195, 415426), (230, 352209), (253, 320190), (286, 283245), (299, 270930), (330, 245479), (345, 234806), (390, 207713), (429, 188830), (506, 160095), (598, 135465), (690, 117403), (715, 113298), (759, 106730), (821, 98670), (858, 94415), (897, 90310), (1265, 64038), (1430, 56649), (1495, 54186), (1518, 53365), (1642, 49335), (1794, 45155), (2145, 37766), (2463, 32890), (2530, 32019), (2990, 27093), (3289, 24630), (3795, 21346), (4105, 19734), (4290, 18883), (4485, 18062), (4926, 16445), (6578, 12315), (7590, 10673), (8210, 9867), (8970, 9031)]