687990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:117

約数の個数: 64

約数和(自身を含む): 1866240

約数和(自身を除く): 1178250

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 19, 30, 34, 38, 51, 57, 71, 85, 95, 102, 114, 142, 170, 190, 213, 255, 285, 323, 355, 426, 510, 570, 646, 710, 969, 1065, 1207, 1349, 1615, 1938, 2130, 2414, 2698, 3230, 3621, 4047, 4845, 6035, 6745, 7242, 8094, 9690, 12070, 13490, 18105, 20235, 22933, 36210, 40470, 45866, 68799, 114665, 137598, 229330, 343995, 687990]

約数ペア:

[(1, 687990), (2, 343995), (3, 229330), (5, 137598), (6, 114665), (10, 68799), (15, 45866), (17, 40470), (19, 36210), (30, 22933), (34, 20235), (38, 18105), (51, 13490), (57, 12070), (71, 9690), (85, 8094), (95, 7242), (102, 6745), (114, 6035), (142, 4845), (170, 4047), (190, 3621), (213, 3230), (255, 2698), (285, 2414), (323, 2130), (355, 1938), (426, 1615), (510, 1349), (570, 1207), (646, 1065), (710, 969)]