215575980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{211349}}^1$

素因数の和:211378

約数の個数: 48

約数和(自身を含む): 639122400

約数和(自身を除く): 423546420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 211349, 422698, 634047, 845396, 1056745, 1268094, 2113490, 2536188, 3170235, 3592933, 4226980, 6340470, 7185866, 10778799, 12680940, 14371732, 17964665, 21557598, 35929330, 43115196, 53893995, 71858660, 107787990, 215575980]

約数ペア:

[(1, 215575980), (2, 107787990), (3, 71858660), (4, 53893995), (5, 43115196), (6, 35929330), (10, 21557598), (12, 17964665), (15, 14371732), (17, 12680940), (20, 10778799), (30, 7185866), (34, 6340470), (51, 4226980), (60, 3592933), (68, 3170235), (85, 2536188), (102, 2113490), (170, 1268094), (204, 1056745), (255, 845396), (340, 634047), (510, 422698), (1020, 211349)]