1311720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{643}}^1$

素因数の和:674

約数の個数: 64

約数和(自身を含む): 4173120

約数和(自身を除く): 2861400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 643, 680, 1020, 1286, 1929, 2040, 2572, 3215, 3858, 5144, 6430, 7716, 9645, 10931, 12860, 15432, 19290, 21862, 25720, 32793, 38580, 43724, 54655, 65586, 77160, 87448, 109310, 131172, 163965, 218620, 262344, 327930, 437240, 655860, 1311720]

約数ペア:

[(1, 1311720), (2, 655860), (3, 437240), (4, 327930), (5, 262344), (6, 218620), (8, 163965), (10, 131172), (12, 109310), (15, 87448), (17, 77160), (20, 65586), (24, 54655), (30, 43724), (34, 38580), (40, 32793), (51, 25720), (60, 21862), (68, 19290), (85, 15432), (102, 12860), (120, 10931), (136, 9645), (170, 7716), (204, 6430), (255, 5144), (340, 3858), (408, 3215), (510, 2572), (643, 2040), (680, 1929), (1020, 1286)]