261843712

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:190

約数の個数: 144

約数和(自身を含む): 612954720

約数和(自身を除く): 351111008

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 41, 52, 64, 76, 82, 101, 104, 128, 152, 164, 202, 208, 247, 256, 304, 328, 404, 416, 494, 533, 608, 656, 779, 808, 832, 988, 1066, 1216, 1312, 1313, 1558, 1616, 1664, 1919, 1976, 2132, 2432, 2624, 2626, 3116, 3232, 3328, 3838, 3952, 4141, 4264, 4864, 5248, 5252, 6232, 6464, 7676, 7904, 8282, 8528, 10127, 10496, 10504, 12464, 12928, 15352, 15808, 16564, 17056, 20254, 21008, 24928, 24947, 25856, 30704, 31616, 33128, 34112, 40508, 42016, 49856, 49894, 53833, 61408, 63232, 66256, 68224, 78679, 81016, 84032, 99712, 99788, 107666, 122816, 132512, 136448, 157358, 162032, 168064, 199424, 199576, 215332, 245632, 265024, 314716, 324064, 336128, 399152, 430664, 491264, 530048, 629432, 648128, 798304, 861328, 1022827, 1060096, 1258864, 1296256, 1596608, 1722656, 2045654, 2517728, 2592512, 3193216, 3445312, 4091308, 5035456, 6386432, 6890624, 8182616, 10070912, 13781248, 16365232, 20141824, 32730464, 65460928, 130921856, 261843712]

約数ペア:

[(1, 261843712), (2, 130921856), (4, 65460928), (8, 32730464), (13, 20141824), (16, 16365232), (19, 13781248), (26, 10070912), (32, 8182616), (38, 6890624), (41, 6386432), (52, 5035456), (64, 4091308), (76, 3445312), (82, 3193216), (101, 2592512), (104, 2517728), (128, 2045654), (152, 1722656), (164, 1596608), (202, 1296256), (208, 1258864), (247, 1060096), (256, 1022827), (304, 861328), (328, 798304), (404, 648128), (416, 629432), (494, 530048), (533, 491264), (608, 430664), (656, 399152), (779, 336128), (808, 324064), (832, 314716), (988, 265024), (1066, 245632), (1216, 215332), (1312, 199576), (1313, 199424), (1558, 168064), (1616, 162032), (1664, 157358), (1919, 136448), (1976, 132512), (2132, 122816), (2432, 107666), (2624, 99788), (2626, 99712), (3116, 84032), (3232, 81016), (3328, 78679), (3838, 68224), (3952, 66256), (4141, 63232), (4264, 61408), (4864, 53833), (5248, 49894), (5252, 49856), (6232, 42016), (6464, 40508), (7676, 34112), (7904, 33128), (8282, 31616), (8528, 30704), (10127, 25856), (10496, 24947), (10504, 24928), (12464, 21008), (12928, 20254), (15352, 17056), (15808, 16564)]