1818979345

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{269}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 2519424000

約数和(自身を除く): 700444655

約数列:

[1, 5, 17, 19, 53, 79, 85, 95, 265, 269, 323, 395, 901, 1007, 1343, 1345, 1501, 1615, 4187, 4505, 4573, 5035, 5111, 6715, 7505, 14257, 17119, 20935, 21251, 22865, 25517, 25555, 71179, 71285, 79553, 85595, 86887, 106255, 127585, 242369, 270883, 355895, 361267, 397765, 403769, 434435, 1126303, 1211845, 1352401, 1354415, 1806335, 2018845, 4605011, 5631515, 6762005, 6864073, 19147151, 21399757, 23025055, 34320365, 95735755, 106998785, 363795869, 1818979345]

約数ペア:

[(1, 1818979345), (5, 363795869), (17, 106998785), (19, 95735755), (53, 34320365), (79, 23025055), (85, 21399757), (95, 19147151), (265, 6864073), (269, 6762005), (323, 5631515), (395, 4605011), (901, 2018845), (1007, 1806335), (1343, 1354415), (1345, 1352401), (1501, 1211845), (1615, 1126303), (4187, 434435), (4505, 403769), (4573, 397765), (5035, 361267), (5111, 355895), (6715, 270883), (7505, 242369), (14257, 127585), (17119, 106255), (20935, 86887), (21251, 85595), (22865, 79553), (25517, 71285), (25555, 71179)]