1987123788

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{499}}^1$

素因数の和:716

約数の個数: 144

約数和(自身を含む): 5544448000

約数和(自身を除く): 3557324212

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 67, 78, 117, 127, 134, 156, 201, 234, 254, 268, 381, 402, 468, 499, 508, 603, 762, 804, 871, 998, 1143, 1206, 1497, 1524, 1651, 1742, 1996, 2286, 2412, 2613, 2994, 3302, 3484, 4491, 4572, 4953, 5226, 5988, 6487, 6604, 7839, 8509, 8982, 9906, 10452, 12974, 14859, 15678, 17018, 17964, 19461, 19812, 25527, 25948, 29718, 31356, 33433, 34036, 38922, 51054, 58383, 59436, 63373, 66866, 76581, 77844, 100299, 102108, 110617, 116766, 126746, 133732, 153162, 190119, 200598, 221234, 233532, 253492, 300897, 306324, 331851, 380238, 401196, 434629, 442468, 570357, 601794, 663702, 760476, 823849, 869258, 995553, 1140714, 1203588, 1303887, 1327404, 1647698, 1738516, 1991106, 2281428, 2471547, 2607774, 3295396, 3911661, 3982212, 4245991, 4943094, 5215548, 7414641, 7823322, 8491982, 9886188, 12737973, 14829282, 15646644, 16983964, 25475946, 29658564, 38213919, 50951892, 55197883, 76427838, 110395766, 152855676, 165593649, 220791532, 331187298, 496780947, 662374596, 993561894, 1987123788]

約数ペア:

[(1, 1987123788), (2, 993561894), (3, 662374596), (4, 496780947), (6, 331187298), (9, 220791532), (12, 165593649), (13, 152855676), (18, 110395766), (26, 76427838), (36, 55197883), (39, 50951892), (52, 38213919), (67, 29658564), (78, 25475946), (117, 16983964), (127, 15646644), (134, 14829282), (156, 12737973), (201, 9886188), (234, 8491982), (254, 7823322), (268, 7414641), (381, 5215548), (402, 4943094), (468, 4245991), (499, 3982212), (508, 3911661), (603, 3295396), (762, 2607774), (804, 2471547), (871, 2281428), (998, 1991106), (1143, 1738516), (1206, 1647698), (1497, 1327404), (1524, 1303887), (1651, 1203588), (1742, 1140714), (1996, 995553), (2286, 869258), (2412, 823849), (2613, 760476), (2994, 663702), (3302, 601794), (3484, 570357), (4491, 442468), (4572, 434629), (4953, 401196), (5226, 380238), (5988, 331851), (6487, 306324), (6604, 300897), (7839, 253492), (8509, 233532), (8982, 221234), (9906, 200598), (10452, 190119), (12974, 153162), (14859, 133732), (15678, 126746), (17018, 116766), (17964, 110617), (19461, 102108), (19812, 100299), (25527, 77844), (25948, 76581), (29718, 66866), (31356, 63373), (33433, 59436), (34036, 58383), (38922, 51054)]