81574680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2131}}^1$

素因数の和:2185

約数の個数: 128

約数和(自身を含む): 276307200

約数和(自身を除く): 194732520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 29, 30, 33, 40, 44, 55, 58, 60, 66, 87, 88, 110, 116, 120, 132, 145, 165, 174, 220, 232, 264, 290, 319, 330, 348, 435, 440, 580, 638, 660, 696, 870, 957, 1160, 1276, 1320, 1595, 1740, 1914, 2131, 2552, 3190, 3480, 3828, 4262, 4785, 6380, 6393, 7656, 8524, 9570, 10655, 12760, 12786, 17048, 19140, 21310, 23441, 25572, 31965, 38280, 42620, 46882, 51144, 61799, 63930, 70323, 85240, 93764, 117205, 123598, 127860, 140646, 185397, 187528, 234410, 247196, 255720, 281292, 308995, 351615, 370794, 468820, 494392, 562584, 617990, 679789, 703230, 741588, 926985, 937640, 1235980, 1359578, 1406460, 1483176, 1853970, 2039367, 2471960, 2719156, 2812920, 3398945, 3707940, 4078734, 5438312, 6797890, 7415880, 8157468, 10196835, 13595780, 16314936, 20393670, 27191560, 40787340, 81574680]

約数ペア:

[(1, 81574680), (2, 40787340), (3, 27191560), (4, 20393670), (5, 16314936), (6, 13595780), (8, 10196835), (10, 8157468), (11, 7415880), (12, 6797890), (15, 5438312), (20, 4078734), (22, 3707940), (24, 3398945), (29, 2812920), (30, 2719156), (33, 2471960), (40, 2039367), (44, 1853970), (55, 1483176), (58, 1406460), (60, 1359578), (66, 1235980), (87, 937640), (88, 926985), (110, 741588), (116, 703230), (120, 679789), (132, 617990), (145, 562584), (165, 494392), (174, 468820), (220, 370794), (232, 351615), (264, 308995), (290, 281292), (319, 255720), (330, 247196), (348, 234410), (435, 187528), (440, 185397), (580, 140646), (638, 127860), (660, 123598), (696, 117205), (870, 93764), (957, 85240), (1160, 70323), (1276, 63930), (1320, 61799), (1595, 51144), (1740, 46882), (1914, 42620), (2131, 38280), (2552, 31965), (3190, 25572), (3480, 23441), (3828, 21310), (4262, 19140), (4785, 17048), (6380, 12786), (6393, 12760), (7656, 10655), (8524, 9570)]