1287240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{631}}^1$

素因数の和:662

約数の個数: 64

約数和(自身を含む): 4095360

約数和(自身を除く): 2808120

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, 631, 680, 1020, 1262, 1893, 2040, 2524, 3155, 3786, 5048, 6310, 7572, 9465, 10727, 12620, 15144, 18930, 21454, 25240, 32181, 37860, 42908, 53635, 64362, 75720, 85816, 107270, 128724, 160905, 214540, 257448, 321810, 429080, 643620, 1287240]

約数ペア:

[(1, 1287240), (2, 643620), (3, 429080), (4, 321810), (5, 257448), (6, 214540), (8, 160905), (10, 128724), (12, 107270), (15, 85816), (17, 75720), (20, 64362), (24, 53635), (30, 42908), (34, 37860), (40, 32181), (51, 25240), (60, 21454), (68, 18930), (85, 15144), (102, 12620), (120, 10727), (136, 9465), (170, 7572), (204, 6310), (255, 5048), (340, 3786), (408, 3155), (510, 2524), (631, 2040), (680, 1893), (1020, 1262)]