81572260

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:111

約数の個数: 192

約数和(自身を含む): 232243200

約数和(自身を除く): 150670940

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 23, 28, 35, 44, 46, 47, 49, 55, 70, 77, 92, 94, 98, 110, 115, 140, 154, 161, 188, 196, 220, 230, 235, 245, 253, 308, 322, 329, 343, 385, 460, 470, 490, 506, 517, 539, 644, 658, 686, 770, 805, 940, 980, 1012, 1034, 1078, 1081, 1127, 1265, 1316, 1372, 1540, 1610, 1645, 1715, 1771, 2068, 2156, 2162, 2254, 2303, 2530, 2585, 2695, 3220, 3290, 3430, 3542, 3619, 3773, 4324, 4508, 4606, 5060, 5170, 5390, 5405, 5635, 6580, 6860, 7084, 7238, 7546, 7567, 7889, 8855, 9212, 10340, 10780, 10810, 11270, 11515, 11891, 12397, 14476, 15092, 15134, 15778, 16121, 17710, 18095, 18865, 21620, 22540, 23030, 23782, 24794, 25333, 30268, 31556, 32242, 35420, 36190, 37730, 37835, 39445, 46060, 47564, 49588, 50666, 52969, 59455, 61985, 64484, 72380, 75460, 75670, 78890, 80605, 83237, 86779, 101332, 105938, 118910, 123970, 126665, 151340, 157780, 161210, 166474, 173558, 177331, 211876, 237820, 247940, 253330, 264845, 322420, 332948, 347116, 354662, 370783, 416185, 433895, 506660, 529690, 582659, 709324, 741566, 832370, 867790, 886655, 1059380, 1165318, 1483132, 1664740, 1735580, 1773310, 1853915, 2330636, 2913295, 3546620, 3707830, 4078613, 5826590, 7415660, 8157226, 11653180, 16314452, 20393065, 40786130, 81572260]

約数ペア:

[(1, 81572260), (2, 40786130), (4, 20393065), (5, 16314452), (7, 11653180), (10, 8157226), (11, 7415660), (14, 5826590), (20, 4078613), (22, 3707830), (23, 3546620), (28, 2913295), (35, 2330636), (44, 1853915), (46, 1773310), (47, 1735580), (49, 1664740), (55, 1483132), (70, 1165318), (77, 1059380), (92, 886655), (94, 867790), (98, 832370), (110, 741566), (115, 709324), (140, 582659), (154, 529690), (161, 506660), (188, 433895), (196, 416185), (220, 370783), (230, 354662), (235, 347116), (245, 332948), (253, 322420), (308, 264845), (322, 253330), (329, 247940), (343, 237820), (385, 211876), (460, 177331), (470, 173558), (490, 166474), (506, 161210), (517, 157780), (539, 151340), (644, 126665), (658, 123970), (686, 118910), (770, 105938), (805, 101332), (940, 86779), (980, 83237), (1012, 80605), (1034, 78890), (1078, 75670), (1081, 75460), (1127, 72380), (1265, 64484), (1316, 61985), (1372, 59455), (1540, 52969), (1610, 50666), (1645, 49588), (1715, 47564), (1771, 46060), (2068, 39445), (2156, 37835), (2162, 37730), (2254, 36190), (2303, 35420), (2530, 32242), (2585, 31556), (2695, 30268), (3220, 25333), (3290, 24794), (3430, 23782), (3542, 23030), (3619, 22540), (3773, 21620), (4324, 18865), (4508, 18095), (4606, 17710), (5060, 16121), (5170, 15778), (5390, 15134), (5405, 15092), (5635, 14476), (6580, 12397), (6860, 11891), (7084, 11515), (7238, 11270), (7546, 10810), (7567, 10780), (7889, 10340), (8855, 9212)]