398438208

素因数分解:

$2^6\times 3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{743}}^1$

素因数の和:794

約数の個数: 252

約数和(自身を含む): 1400312160

約数和(自身を除く): 1001873952

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 19, 21, 24, 28, 32, 36, 38, 42, 48, 49, 56, 57, 63, 64, 72, 76, 84, 96, 98, 112, 114, 126, 133, 144, 147, 152, 168, 171, 192, 196, 224, 228, 252, 266, 288, 294, 304, 336, 342, 392, 399, 441, 448, 456, 504, 532, 576, 588, 608, 672, 684, 743, 784, 798, 882, 912, 931, 1008, 1064, 1176, 1197, 1216, 1344, 1368, 1486, 1568, 1596, 1764, 1824, 1862, 2016, 2128, 2229, 2352, 2394, 2736, 2793, 2972, 3136, 3192, 3528, 3648, 3724, 4032, 4256, 4458, 4704, 4788, 5201, 5472, 5586, 5944, 6384, 6687, 7056, 7448, 8379, 8512, 8916, 9408, 9576, 10402, 10944, 11172, 11888, 12768, 13374, 14112, 14117, 14896, 15603, 16758, 17832, 19152, 20804, 22344, 23776, 25536, 26748, 28224, 28234, 29792, 31206, 33516, 35664, 36407, 38304, 41608, 42351, 44688, 46809, 47552, 53496, 56468, 59584, 62412, 67032, 71328, 72814, 76608, 83216, 84702, 89376, 93618, 98819, 106992, 109221, 112936, 124824, 127053, 134064, 142656, 145628, 166432, 169404, 178752, 187236, 197638, 213984, 218442, 225872, 249648, 254106, 268128, 291256, 296457, 327663, 332864, 338808, 374472, 395276, 427968, 436884, 451744, 499296, 508212, 536256, 582512, 592914, 655326, 677616, 691733, 748944, 790552, 873768, 889371, 903488, 998592, 1016424, 1165024, 1185828, 1310652, 1355232, 1383466, 1497888, 1581104, 1747536, 1778742, 2032848, 2075199, 2330048, 2371656, 2621304, 2710464, 2766932, 2995776, 3162208, 3495072, 3557484, 4065696, 4150398, 4743312, 5242608, 5533864, 6225597, 6324416, 6990144, 7114968, 8131392, 8300796, 9486624, 10485216, 11067728, 12451194, 14229936, 16601592, 18973248, 20970432, 22135456, 24902388, 28459872, 33203184, 44270912, 49804776, 56919744, 66406368, 99609552, 132812736, 199219104, 398438208]

約数ペア:

[(1, 398438208), (2, 199219104), (3, 132812736), (4, 99609552), (6, 66406368), (7, 56919744), (8, 49804776), (9, 44270912), (12, 33203184), (14, 28459872), (16, 24902388), (18, 22135456), (19, 20970432), (21, 18973248), (24, 16601592), (28, 14229936), (32, 12451194), (36, 11067728), (38, 10485216), (42, 9486624), (48, 8300796), (49, 8131392), (56, 7114968), (57, 6990144), (63, 6324416), (64, 6225597), (72, 5533864), (76, 5242608), (84, 4743312), (96, 4150398), (98, 4065696), (112, 3557484), (114, 3495072), (126, 3162208), (133, 2995776), (144, 2766932), (147, 2710464), (152, 2621304), (168, 2371656), (171, 2330048), (192, 2075199), (196, 2032848), (224, 1778742), (228, 1747536), (252, 1581104), (266, 1497888), (288, 1383466), (294, 1355232), (304, 1310652), (336, 1185828), (342, 1165024), (392, 1016424), (399, 998592), (441, 903488), (448, 889371), (456, 873768), (504, 790552), (532, 748944), (576, 691733), (588, 677616), (608, 655326), (672, 592914), (684, 582512), (743, 536256), (784, 508212), (798, 499296), (882, 451744), (912, 436884), (931, 427968), (1008, 395276), (1064, 374472), (1176, 338808), (1197, 332864), (1216, 327663), (1344, 296457), (1368, 291256), (1486, 268128), (1568, 254106), (1596, 249648), (1764, 225872), (1824, 218442), (1862, 213984), (2016, 197638), (2128, 187236), (2229, 178752), (2352, 169404), (2394, 166432), (2736, 145628), (2793, 142656), (2972, 134064), (3136, 127053), (3192, 124824), (3528, 112936), (3648, 109221), (3724, 106992), (4032, 98819), (4256, 93618), (4458, 89376), (4704, 84702), (4788, 83216), (5201, 76608), (5472, 72814), (5586, 71328), (5944, 67032), (6384, 62412), (6687, 59584), (7056, 56468), (7448, 53496), (8379, 47552), (8512, 46809), (8916, 44688), (9408, 42351), (9576, 41608), (10402, 38304), (10944, 36407), (11172, 35664), (11888, 33516), (12768, 31206), (13374, 29792), (14112, 28234), (14117, 28224), (14896, 26748), (15603, 25536), (16758, 23776), (17832, 22344), (19152, 20804)]