400494528

素因数分解:

$2^6\times 3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1399}}^1$

素因数の和:1495

約数の個数: 168

約数和(自身を含む): 1331366400

約数和(自身を除く): 930871872

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 64, 71, 72, 84, 96, 112, 126, 142, 144, 168, 192, 213, 224, 252, 284, 288, 336, 426, 448, 497, 504, 568, 576, 639, 672, 852, 994, 1008, 1136, 1278, 1344, 1399, 1491, 1704, 1988, 2016, 2272, 2556, 2798, 2982, 3408, 3976, 4032, 4197, 4473, 4544, 5112, 5596, 5964, 6816, 7952, 8394, 8946, 9793, 10224, 11192, 11928, 12591, 13632, 15904, 16788, 17892, 19586, 20448, 22384, 23856, 25182, 29379, 31808, 33576, 35784, 39172, 40896, 44768, 47712, 50364, 58758, 67152, 71568, 78344, 88137, 89536, 95424, 99329, 100728, 117516, 134304, 143136, 156688, 176274, 198658, 201456, 235032, 268608, 286272, 297987, 313376, 352548, 397316, 402912, 470064, 595974, 626752, 695303, 705096, 794632, 805824, 893961, 940128, 1191948, 1390606, 1410192, 1589264, 1787922, 1880256, 2085909, 2383896, 2781212, 2820384, 3178528, 3575844, 4171818, 4767792, 5562424, 5640768, 6257727, 6357056, 7151688, 8343636, 9535584, 11124848, 12515454, 14303376, 16687272, 19071168, 22249696, 25030908, 28606752, 33374544, 44499392, 50061816, 57213504, 66749088, 100123632, 133498176, 200247264, 400494528]

約数ペア:

[(1, 400494528), (2, 200247264), (3, 133498176), (4, 100123632), (6, 66749088), (7, 57213504), (8, 50061816), (9, 44499392), (12, 33374544), (14, 28606752), (16, 25030908), (18, 22249696), (21, 19071168), (24, 16687272), (28, 14303376), (32, 12515454), (36, 11124848), (42, 9535584), (48, 8343636), (56, 7151688), (63, 6357056), (64, 6257727), (71, 5640768), (72, 5562424), (84, 4767792), (96, 4171818), (112, 3575844), (126, 3178528), (142, 2820384), (144, 2781212), (168, 2383896), (192, 2085909), (213, 1880256), (224, 1787922), (252, 1589264), (284, 1410192), (288, 1390606), (336, 1191948), (426, 940128), (448, 893961), (497, 805824), (504, 794632), (568, 705096), (576, 695303), (639, 626752), (672, 595974), (852, 470064), (994, 402912), (1008, 397316), (1136, 352548), (1278, 313376), (1344, 297987), (1399, 286272), (1491, 268608), (1704, 235032), (1988, 201456), (2016, 198658), (2272, 176274), (2556, 156688), (2798, 143136), (2982, 134304), (3408, 117516), (3976, 100728), (4032, 99329), (4197, 95424), (4473, 89536), (4544, 88137), (5112, 78344), (5596, 71568), (5964, 67152), (6816, 58758), (7952, 50364), (8394, 47712), (8946, 44768), (9793, 40896), (10224, 39172), (11192, 35784), (11928, 33576), (12591, 31808), (13632, 29379), (15904, 25182), (16788, 23856), (17892, 22384), (19586, 20448)]