256426872

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{229}}^1$

素因数の和:385

約数の個数: 128

約数和(自身を含む): 719476800

約数和(自身を除く): 463049928

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 37, 39, 52, 74, 78, 97, 104, 111, 148, 156, 194, 222, 229, 291, 296, 312, 388, 444, 458, 481, 582, 687, 776, 888, 916, 962, 1164, 1261, 1374, 1443, 1832, 1924, 2328, 2522, 2748, 2886, 2977, 3589, 3783, 3848, 5044, 5496, 5772, 5954, 7178, 7566, 8473, 8931, 10088, 10767, 11544, 11908, 14356, 15132, 16946, 17862, 21534, 22213, 23816, 25419, 28712, 30264, 33892, 35724, 43068, 44426, 46657, 50838, 66639, 67784, 71448, 86136, 88852, 93314, 101676, 110149, 133278, 139971, 177704, 186628, 203352, 220298, 266556, 279942, 288769, 330447, 373256, 440596, 533112, 559884, 577538, 660894, 821881, 866307, 881192, 1119768, 1155076, 1321788, 1643762, 1732614, 2310152, 2465643, 2643576, 3287524, 3465228, 4931286, 6575048, 6930456, 9862572, 10684453, 19725144, 21368906, 32053359, 42737812, 64106718, 85475624, 128213436, 256426872]

約数ペア:

[(1, 256426872), (2, 128213436), (3, 85475624), (4, 64106718), (6, 42737812), (8, 32053359), (12, 21368906), (13, 19725144), (24, 10684453), (26, 9862572), (37, 6930456), (39, 6575048), (52, 4931286), (74, 3465228), (78, 3287524), (97, 2643576), (104, 2465643), (111, 2310152), (148, 1732614), (156, 1643762), (194, 1321788), (222, 1155076), (229, 1119768), (291, 881192), (296, 866307), (312, 821881), (388, 660894), (444, 577538), (458, 559884), (481, 533112), (582, 440596), (687, 373256), (776, 330447), (888, 288769), (916, 279942), (962, 266556), (1164, 220298), (1261, 203352), (1374, 186628), (1443, 177704), (1832, 139971), (1924, 133278), (2328, 110149), (2522, 101676), (2748, 93314), (2886, 88852), (2977, 86136), (3589, 71448), (3783, 67784), (3848, 66639), (5044, 50838), (5496, 46657), (5772, 44426), (5954, 43068), (7178, 35724), (7566, 33892), (8473, 30264), (8931, 28712), (10088, 25419), (10767, 23816), (11544, 22213), (11908, 21534), (14356, 17862), (15132, 16946)]