20281404

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:307

約数の個数: 96

約数和(自身を含む): 56899584

約数和(自身を除く): 36618180

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 53, 66, 78, 106, 132, 143, 156, 159, 212, 223, 286, 318, 429, 446, 572, 583, 636, 669, 689, 858, 892, 1166, 1338, 1378, 1716, 1749, 2067, 2332, 2453, 2676, 2756, 2899, 3498, 4134, 4906, 5798, 6996, 7359, 7579, 8268, 8697, 9812, 11596, 11819, 14718, 15158, 17394, 22737, 23638, 29436, 30316, 31889, 34788, 35457, 45474, 47276, 63778, 70914, 90948, 95667, 127556, 130009, 141828, 153647, 191334, 260018, 307294, 382668, 390027, 460941, 520036, 614588, 780054, 921882, 1560108, 1690117, 1843764, 3380234, 5070351, 6760468, 10140702, 20281404]

約数ペア:

[(1, 20281404), (2, 10140702), (3, 6760468), (4, 5070351), (6, 3380234), (11, 1843764), (12, 1690117), (13, 1560108), (22, 921882), (26, 780054), (33, 614588), (39, 520036), (44, 460941), (52, 390027), (53, 382668), (66, 307294), (78, 260018), (106, 191334), (132, 153647), (143, 141828), (156, 130009), (159, 127556), (212, 95667), (223, 90948), (286, 70914), (318, 63778), (429, 47276), (446, 45474), (572, 35457), (583, 34788), (636, 31889), (669, 30316), (689, 29436), (858, 23638), (892, 22737), (1166, 17394), (1338, 15158), (1378, 14718), (1716, 11819), (1749, 11596), (2067, 9812), (2332, 8697), (2453, 8268), (2676, 7579), (2756, 7359), (2899, 6996), (3498, 5798), (4134, 4906)]