400202600

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{97}}^1\times {\mathrm{421}}^1$

素因数の和:548

約数の個数: 144

約数和(自身を含む): 1096140780

約数和(自身を除く): 695938180

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 97, 98, 100, 140, 175, 194, 196, 200, 245, 280, 350, 388, 392, 421, 485, 490, 679, 700, 776, 842, 970, 980, 1225, 1358, 1400, 1684, 1940, 1960, 2105, 2425, 2450, 2716, 2947, 3368, 3395, 3880, 4210, 4753, 4850, 4900, 5432, 5894, 6790, 8420, 9506, 9700, 9800, 10525, 11788, 13580, 14735, 16840, 16975, 19012, 19400, 20629, 21050, 23576, 23765, 27160, 29470, 33950, 38024, 40837, 41258, 42100, 47530, 58940, 67900, 73675, 81674, 82516, 84200, 95060, 103145, 117880, 118825, 135800, 147350, 163348, 165032, 190120, 204185, 206290, 237650, 285859, 294700, 326696, 408370, 412580, 475300, 515725, 571718, 589400, 816740, 825160, 950600, 1020925, 1031450, 1143436, 1429295, 1633480, 2001013, 2041850, 2062900, 2286872, 2858590, 4002026, 4083700, 4125800, 5717180, 7146475, 8004052, 8167400, 10005065, 11434360, 14292950, 16008104, 20010130, 28585900, 40020260, 50025325, 57171800, 80040520, 100050650, 200101300, 400202600]

約数ペア:

[(1, 400202600), (2, 200101300), (4, 100050650), (5, 80040520), (7, 57171800), (8, 50025325), (10, 40020260), (14, 28585900), (20, 20010130), (25, 16008104), (28, 14292950), (35, 11434360), (40, 10005065), (49, 8167400), (50, 8004052), (56, 7146475), (70, 5717180), (97, 4125800), (98, 4083700), (100, 4002026), (140, 2858590), (175, 2286872), (194, 2062900), (196, 2041850), (200, 2001013), (245, 1633480), (280, 1429295), (350, 1143436), (388, 1031450), (392, 1020925), (421, 950600), (485, 825160), (490, 816740), (679, 589400), (700, 571718), (776, 515725), (842, 475300), (970, 412580), (980, 408370), (1225, 326696), (1358, 294700), (1400, 285859), (1684, 237650), (1940, 206290), (1960, 204185), (2105, 190120), (2425, 165032), (2450, 163348), (2716, 147350), (2947, 135800), (3368, 118825), (3395, 117880), (3880, 103145), (4210, 95060), (4753, 84200), (4850, 82516), (4900, 81674), (5432, 73675), (5894, 67900), (6790, 58940), (8420, 47530), (9506, 42100), (9700, 41258), (9800, 40837), (10525, 38024), (11788, 33950), (13580, 29470), (14735, 27160), (16840, 23765), (16975, 23576), (19012, 21050), (19400, 20629)]