351365900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1993}}^1$

素因数の和:2091

約数の個数: 72

約数和(自身を含む): 799625904

約数和(自身を除く): 448260004

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 43, 50, 82, 86, 100, 164, 172, 205, 215, 410, 430, 820, 860, 1025, 1075, 1763, 1993, 2050, 2150, 3526, 3986, 4100, 4300, 7052, 7972, 8815, 9965, 17630, 19930, 35260, 39860, 44075, 49825, 81713, 85699, 88150, 99650, 163426, 171398, 176300, 199300, 326852, 342796, 408565, 428495, 817130, 856990, 1634260, 1713980, 2042825, 2142475, 3513659, 4085650, 4284950, 7027318, 8171300, 8569900, 14054636, 17568295, 35136590, 70273180, 87841475, 175682950, 351365900]

約数ペア:

[(1, 351365900), (2, 175682950), (4, 87841475), (5, 70273180), (10, 35136590), (20, 17568295), (25, 14054636), (41, 8569900), (43, 8171300), (50, 7027318), (82, 4284950), (86, 4085650), (100, 3513659), (164, 2142475), (172, 2042825), (205, 1713980), (215, 1634260), (410, 856990), (430, 817130), (820, 428495), (860, 408565), (1025, 342796), (1075, 326852), (1763, 199300), (1993, 176300), (2050, 171398), (2150, 163426), (3526, 99650), (3986, 88150), (4100, 85699), (4300, 81713), (7052, 49825), (7972, 44075), (8815, 39860), (9965, 35260), (17630, 19930)]