641549216

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{227}}^1$

素因数の和:323

約数の個数: 192

約数和(自身を含む): 1676795904

約数和(自身を除く): 1035246688

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 31, 32, 37, 44, 56, 62, 74, 77, 88, 112, 124, 148, 154, 176, 217, 224, 227, 248, 259, 296, 308, 341, 352, 407, 434, 454, 496, 518, 592, 616, 682, 814, 868, 908, 992, 1036, 1147, 1184, 1232, 1364, 1589, 1628, 1736, 1816, 2072, 2294, 2387, 2464, 2497, 2728, 2849, 3178, 3256, 3472, 3632, 4144, 4588, 4774, 4994, 5456, 5698, 6356, 6512, 6944, 7037, 7264, 8029, 8288, 8399, 9176, 9548, 9988, 10912, 11396, 12617, 12712, 13024, 14074, 16058, 16798, 17479, 18352, 19096, 19976, 22792, 25234, 25424, 28148, 32116, 33596, 34958, 36704, 38192, 39952, 45584, 49259, 50468, 50848, 56296, 58793, 64232, 67192, 69916, 76384, 77407, 79904, 88319, 91168, 92389, 98518, 100936, 112592, 117586, 128464, 134384, 139832, 154814, 176638, 184778, 197036, 201872, 225184, 235172, 256928, 260369, 268768, 279664, 309628, 353276, 369556, 394072, 403744, 470344, 520738, 541849, 559328, 619256, 646723, 706552, 739112, 788144, 940688, 1041476, 1083698, 1238512, 1293446, 1413104, 1478224, 1576288, 1822583, 1881376, 2082952, 2167396, 2477024, 2586892, 2826208, 2864059, 2956448, 3645166, 4165904, 4334792, 5173784, 5728118, 7290332, 8331808, 8669584, 10347568, 11456236, 14580664, 17339168, 20048413, 20695136, 22912472, 29161328, 40096826, 45824944, 58322656, 80193652, 91649888, 160387304, 320774608, 641549216]

約数ペア:

[(1, 641549216), (2, 320774608), (4, 160387304), (7, 91649888), (8, 80193652), (11, 58322656), (14, 45824944), (16, 40096826), (22, 29161328), (28, 22912472), (31, 20695136), (32, 20048413), (37, 17339168), (44, 14580664), (56, 11456236), (62, 10347568), (74, 8669584), (77, 8331808), (88, 7290332), (112, 5728118), (124, 5173784), (148, 4334792), (154, 4165904), (176, 3645166), (217, 2956448), (224, 2864059), (227, 2826208), (248, 2586892), (259, 2477024), (296, 2167396), (308, 2082952), (341, 1881376), (352, 1822583), (407, 1576288), (434, 1478224), (454, 1413104), (496, 1293446), (518, 1238512), (592, 1083698), (616, 1041476), (682, 940688), (814, 788144), (868, 739112), (908, 706552), (992, 646723), (1036, 619256), (1147, 559328), (1184, 541849), (1232, 520738), (1364, 470344), (1589, 403744), (1628, 394072), (1736, 369556), (1816, 353276), (2072, 309628), (2294, 279664), (2387, 268768), (2464, 260369), (2497, 256928), (2728, 235172), (2849, 225184), (3178, 201872), (3256, 197036), (3472, 184778), (3632, 176638), (4144, 154814), (4588, 139832), (4774, 134384), (4994, 128464), (5456, 117586), (5698, 112592), (6356, 100936), (6512, 98518), (6944, 92389), (7037, 91168), (7264, 88319), (8029, 79904), (8288, 77407), (8399, 76384), (9176, 69916), (9548, 67192), (9988, 64232), (10912, 58793), (11396, 56296), (12617, 50848), (12712, 50468), (13024, 49259), (14074, 45584), (16058, 39952), (16798, 38192), (17479, 36704), (18352, 34958), (19096, 33596), (19976, 32116), (22792, 28148), (25234, 25424)]