256759360

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:253

約数の個数: 224

約数和(自身を含む): 745565184

約数和(自身を除く): 488805824

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 31, 32, 40, 44, 52, 55, 62, 64, 65, 80, 88, 104, 110, 124, 130, 143, 155, 160, 176, 181, 208, 220, 248, 260, 286, 310, 320, 341, 352, 362, 403, 416, 440, 496, 520, 572, 620, 682, 704, 715, 724, 806, 832, 880, 905, 992, 1040, 1144, 1240, 1364, 1430, 1448, 1612, 1705, 1760, 1810, 1984, 1991, 2015, 2080, 2288, 2353, 2480, 2728, 2860, 2896, 3224, 3410, 3520, 3620, 3982, 4030, 4160, 4433, 4576, 4706, 4960, 5456, 5611, 5720, 5792, 6448, 6820, 7240, 7964, 8060, 8866, 9152, 9412, 9920, 9955, 10912, 11222, 11440, 11584, 11765, 12896, 13640, 14480, 15928, 16120, 17732, 18824, 19910, 21824, 22165, 22444, 22880, 23530, 25792, 25883, 27280, 28055, 28960, 31856, 32240, 35464, 37648, 39820, 44330, 44888, 45760, 47060, 51766, 54560, 56110, 57920, 61721, 63712, 64480, 70928, 72943, 75296, 79640, 88660, 89776, 94120, 103532, 109120, 112220, 123442, 127424, 128960, 129415, 141856, 145886, 150592, 159280, 177320, 179552, 188240, 207064, 224440, 246884, 258830, 283712, 291772, 308605, 318560, 354640, 359104, 364715, 376480, 414128, 448880, 493768, 517660, 583544, 617210, 637120, 709280, 729430, 752960, 802373, 828256, 897760, 987536, 1035320, 1167088, 1234420, 1418560, 1458860, 1604746, 1656512, 1795520, 1975072, 2070640, 2334176, 2468840, 2917720, 3209492, 3950144, 4011865, 4141280, 4668352, 4937680, 5835440, 6418984, 8023730, 8282560, 9875360, 11670880, 12837968, 16047460, 19750720, 23341760, 25675936, 32094920, 51351872, 64189840, 128379680, 256759360]

約数ペア:

[(1, 256759360), (2, 128379680), (4, 64189840), (5, 51351872), (8, 32094920), (10, 25675936), (11, 23341760), (13, 19750720), (16, 16047460), (20, 12837968), (22, 11670880), (26, 9875360), (31, 8282560), (32, 8023730), (40, 6418984), (44, 5835440), (52, 4937680), (55, 4668352), (62, 4141280), (64, 4011865), (65, 3950144), (80, 3209492), (88, 2917720), (104, 2468840), (110, 2334176), (124, 2070640), (130, 1975072), (143, 1795520), (155, 1656512), (160, 1604746), (176, 1458860), (181, 1418560), (208, 1234420), (220, 1167088), (248, 1035320), (260, 987536), (286, 897760), (310, 828256), (320, 802373), (341, 752960), (352, 729430), (362, 709280), (403, 637120), (416, 617210), (440, 583544), (496, 517660), (520, 493768), (572, 448880), (620, 414128), (682, 376480), (704, 364715), (715, 359104), (724, 354640), (806, 318560), (832, 308605), (880, 291772), (905, 283712), (992, 258830), (1040, 246884), (1144, 224440), (1240, 207064), (1364, 188240), (1430, 179552), (1448, 177320), (1612, 159280), (1705, 150592), (1760, 145886), (1810, 141856), (1984, 129415), (1991, 128960), (2015, 127424), (2080, 123442), (2288, 112220), (2353, 109120), (2480, 103532), (2728, 94120), (2860, 89776), (2896, 88660), (3224, 79640), (3410, 75296), (3520, 72943), (3620, 70928), (3982, 64480), (4030, 63712), (4160, 61721), (4433, 57920), (4576, 56110), (4706, 54560), (4960, 51766), (5456, 47060), (5611, 45760), (5720, 44888), (5792, 44330), (6448, 39820), (6820, 37648), (7240, 35464), (7964, 32240), (8060, 31856), (8866, 28960), (9152, 28055), (9412, 27280), (9920, 25883), (9955, 25792), (10912, 23530), (11222, 22880), (11440, 22444), (11584, 22165), (11765, 21824), (12896, 19910), (13640, 18824), (14480, 17732), (15928, 16120)]