256340736

素因数分解:

$2^8\times 3^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:187

約数の個数: 216

約数和(自身を含む): 791633024

約数和(自身を除く): 535292288

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 37, 48, 62, 64, 72, 74, 93, 96, 97, 111, 124, 128, 144, 148, 186, 192, 194, 222, 248, 256, 279, 288, 291, 296, 333, 372, 384, 388, 444, 496, 558, 576, 582, 592, 666, 744, 768, 776, 873, 888, 992, 1116, 1147, 1152, 1164, 1184, 1332, 1488, 1552, 1746, 1776, 1984, 2232, 2294, 2304, 2328, 2368, 2664, 2976, 3007, 3104, 3441, 3492, 3552, 3589, 3968, 4464, 4588, 4656, 4736, 5328, 5952, 6014, 6208, 6882, 6984, 7104, 7178, 7936, 8928, 9021, 9176, 9312, 9472, 10323, 10656, 10767, 11904, 12028, 12416, 13764, 13968, 14208, 14356, 17856, 18042, 18352, 18624, 20646, 21312, 21534, 23808, 24056, 24832, 27063, 27528, 27936, 28416, 28712, 32301, 35712, 36084, 36704, 37248, 41292, 42624, 43068, 48112, 54126, 55056, 55872, 57424, 64602, 71424, 72168, 73408, 74496, 82584, 85248, 86136, 96224, 108252, 110112, 111259, 111744, 114848, 129204, 144336, 146816, 165168, 172272, 192448, 216504, 220224, 222518, 223488, 229696, 258408, 288672, 293632, 330336, 333777, 344544, 384896, 433008, 440448, 445036, 459392, 516816, 577344, 660672, 667554, 689088, 769792, 866016, 880896, 890072, 918784, 1001331, 1033632, 1154688, 1321344, 1335108, 1378176, 1732032, 1780144, 2002662, 2067264, 2309376, 2642688, 2670216, 2756352, 3464064, 3560288, 4005324, 4134528, 5340432, 6928128, 7120576, 8010648, 8269056, 10680864, 14241152, 16021296, 21361728, 28482304, 32042592, 42723456, 64085184, 85446912, 128170368, 256340736]

約数ペア:

[(1, 256340736), (2, 128170368), (3, 85446912), (4, 64085184), (6, 42723456), (8, 32042592), (9, 28482304), (12, 21361728), (16, 16021296), (18, 14241152), (24, 10680864), (31, 8269056), (32, 8010648), (36, 7120576), (37, 6928128), (48, 5340432), (62, 4134528), (64, 4005324), (72, 3560288), (74, 3464064), (93, 2756352), (96, 2670216), (97, 2642688), (111, 2309376), (124, 2067264), (128, 2002662), (144, 1780144), (148, 1732032), (186, 1378176), (192, 1335108), (194, 1321344), (222, 1154688), (248, 1033632), (256, 1001331), (279, 918784), (288, 890072), (291, 880896), (296, 866016), (333, 769792), (372, 689088), (384, 667554), (388, 660672), (444, 577344), (496, 516816), (558, 459392), (576, 445036), (582, 440448), (592, 433008), (666, 384896), (744, 344544), (768, 333777), (776, 330336), (873, 293632), (888, 288672), (992, 258408), (1116, 229696), (1147, 223488), (1152, 222518), (1164, 220224), (1184, 216504), (1332, 192448), (1488, 172272), (1552, 165168), (1746, 146816), (1776, 144336), (1984, 129204), (2232, 114848), (2294, 111744), (2304, 111259), (2328, 110112), (2368, 108252), (2664, 96224), (2976, 86136), (3007, 85248), (3104, 82584), (3441, 74496), (3492, 73408), (3552, 72168), (3589, 71424), (3968, 64602), (4464, 57424), (4588, 55872), (4656, 55056), (4736, 54126), (5328, 48112), (5952, 43068), (6014, 42624), (6208, 41292), (6882, 37248), (6984, 36704), (7104, 36084), (7178, 35712), (7936, 32301), (8928, 28712), (9021, 28416), (9176, 27936), (9312, 27528), (9472, 27063), (10323, 24832), (10656, 24056), (10767, 23808), (11904, 21534), (12028, 21312), (12416, 20646), (13764, 18624), (13968, 18352), (14208, 18042), (14356, 17856)]