257001408

素因数分解:

$2^6\times 3^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:475

約数の個数: 168

約数和(自身を含む): 782970240

約数和(自身を除く): 525968832

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, 111, 124, 144, 148, 186, 192, 222, 248, 279, 288, 296, 333, 372, 389, 444, 496, 558, 576, 592, 666, 744, 778, 888, 992, 1116, 1147, 1167, 1184, 1332, 1488, 1556, 1776, 1984, 2232, 2294, 2334, 2368, 2664, 2976, 3112, 3441, 3501, 3552, 4464, 4588, 4668, 5328, 5952, 6224, 6882, 7002, 7104, 8928, 9176, 9336, 10323, 10656, 12059, 12448, 13764, 14004, 14393, 17856, 18352, 18672, 20646, 21312, 24118, 24896, 27528, 28008, 28786, 36177, 36704, 37344, 41292, 43179, 48236, 55056, 56016, 57572, 72354, 73408, 74688, 82584, 86358, 96472, 108531, 110112, 112032, 115144, 129537, 144708, 165168, 172716, 192944, 217062, 220224, 224064, 230288, 259074, 289416, 330336, 345432, 385888, 434124, 446183, 460576, 518148, 578832, 660672, 690864, 771776, 868248, 892366, 921152, 1036296, 1157664, 1338549, 1381728, 1736496, 1784732, 2072592, 2315328, 2677098, 2763456, 3472992, 3569464, 4015647, 4145184, 5354196, 6945984, 7138928, 8031294, 8290368, 10708392, 14277856, 16062588, 21416784, 28555712, 32125176, 42833568, 64250352, 85667136, 128500704, 257001408]

約数ペア:

[(1, 257001408), (2, 128500704), (3, 85667136), (4, 64250352), (6, 42833568), (8, 32125176), (9, 28555712), (12, 21416784), (16, 16062588), (18, 14277856), (24, 10708392), (31, 8290368), (32, 8031294), (36, 7138928), (37, 6945984), (48, 5354196), (62, 4145184), (64, 4015647), (72, 3569464), (74, 3472992), (93, 2763456), (96, 2677098), (111, 2315328), (124, 2072592), (144, 1784732), (148, 1736496), (186, 1381728), (192, 1338549), (222, 1157664), (248, 1036296), (279, 921152), (288, 892366), (296, 868248), (333, 771776), (372, 690864), (389, 660672), (444, 578832), (496, 518148), (558, 460576), (576, 446183), (592, 434124), (666, 385888), (744, 345432), (778, 330336), (888, 289416), (992, 259074), (1116, 230288), (1147, 224064), (1167, 220224), (1184, 217062), (1332, 192944), (1488, 172716), (1556, 165168), (1776, 144708), (1984, 129537), (2232, 115144), (2294, 112032), (2334, 110112), (2368, 108531), (2664, 96472), (2976, 86358), (3112, 82584), (3441, 74688), (3501, 73408), (3552, 72354), (4464, 57572), (4588, 56016), (4668, 55056), (5328, 48236), (5952, 43179), (6224, 41292), (6882, 37344), (7002, 36704), (7104, 36177), (8928, 28786), (9176, 28008), (9336, 27528), (10323, 24896), (10656, 24118), (12059, 21312), (12448, 20646), (13764, 18672), (14004, 18352), (14393, 17856)]