1281407680

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{15461}}^1$

素因数の和:15522

約数の個数: 112

約数和(自身を含む): 3581741376

約数和(自身を除く): 2300333696

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 56, 64, 70, 74, 80, 112, 140, 148, 160, 185, 224, 259, 280, 296, 320, 370, 448, 518, 560, 592, 740, 1036, 1120, 1184, 1295, 1480, 2072, 2240, 2368, 2590, 2960, 4144, 5180, 5920, 8288, 10360, 11840, 15461, 16576, 20720, 30922, 41440, 61844, 77305, 82880, 108227, 123688, 154610, 216454, 247376, 309220, 432908, 494752, 541135, 572057, 618440, 865816, 989504, 1082270, 1144114, 1236880, 1731632, 2164540, 2288228, 2473760, 2860285, 3463264, 4004399, 4329080, 4576456, 4947520, 5720570, 6926528, 8008798, 8658160, 9152912, 11441140, 16017596, 17316320, 18305824, 20021995, 22882280, 32035192, 34632640, 36611648, 40043990, 45764560, 64070384, 80087980, 91529120, 128140768, 160175960, 183058240, 256281536, 320351920, 640703840, 1281407680]

約数ペア:

[(1, 1281407680), (2, 640703840), (4, 320351920), (5, 256281536), (7, 183058240), (8, 160175960), (10, 128140768), (14, 91529120), (16, 80087980), (20, 64070384), (28, 45764560), (32, 40043990), (35, 36611648), (37, 34632640), (40, 32035192), (56, 22882280), (64, 20021995), (70, 18305824), (74, 17316320), (80, 16017596), (112, 11441140), (140, 9152912), (148, 8658160), (160, 8008798), (185, 6926528), (224, 5720570), (259, 4947520), (280, 4576456), (296, 4329080), (320, 4004399), (370, 3463264), (448, 2860285), (518, 2473760), (560, 2288228), (592, 2164540), (740, 1731632), (1036, 1236880), (1120, 1144114), (1184, 1082270), (1295, 989504), (1480, 865816), (2072, 618440), (2240, 572057), (2368, 541135), (2590, 494752), (2960, 432908), (4144, 309220), (5180, 247376), (5920, 216454), (8288, 154610), (10360, 123688), (11840, 108227), (15461, 82880), (16576, 77305), (20720, 61844), (30922, 41440)]