18038360

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{647}}^1$

素因数の和:716

約数の個数: 64

約数和(自身を含む): 44089920

約数和(自身を除く): 26051560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 68, 82, 85, 136, 164, 170, 205, 328, 340, 410, 647, 680, 697, 820, 1294, 1394, 1640, 2588, 2788, 3235, 3485, 5176, 5576, 6470, 6970, 10999, 12940, 13940, 21998, 25880, 26527, 27880, 43996, 53054, 54995, 87992, 106108, 109990, 132635, 212216, 219980, 265270, 439960, 450959, 530540, 901918, 1061080, 1803836, 2254795, 3607672, 4509590, 9019180, 18038360]

約数ペア:

[(1, 18038360), (2, 9019180), (4, 4509590), (5, 3607672), (8, 2254795), (10, 1803836), (17, 1061080), (20, 901918), (34, 530540), (40, 450959), (41, 439960), (68, 265270), (82, 219980), (85, 212216), (136, 132635), (164, 109990), (170, 106108), (205, 87992), (328, 54995), (340, 53054), (410, 43996), (647, 27880), (680, 26527), (697, 25880), (820, 21998), (1294, 13940), (1394, 12940), (1640, 10999), (2588, 6970), (2788, 6470), (3235, 5576), (3485, 5176)]