168442885

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 248209920

約数和(自身を除く): 79767035

約数列:

[1, 5, 13, 17, 19, 65, 71, 85, 95, 113, 221, 247, 323, 355, 565, 923, 1105, 1207, 1235, 1349, 1469, 1615, 1921, 2147, 4199, 4615, 6035, 6745, 7345, 8023, 9605, 10735, 15691, 17537, 20995, 22933, 24973, 27911, 36499, 40115, 78455, 87685, 104299, 114665, 124865, 136391, 139555, 152437, 182495, 298129, 474487, 521495, 681955, 762185, 1490645, 1773083, 1981681, 2372435, 2591429, 8865415, 9908405, 12957145, 33688577, 168442885]

約数ペア:

[(1, 168442885), (5, 33688577), (13, 12957145), (17, 9908405), (19, 8865415), (65, 2591429), (71, 2372435), (85, 1981681), (95, 1773083), (113, 1490645), (221, 762185), (247, 681955), (323, 521495), (355, 474487), (565, 298129), (923, 182495), (1105, 152437), (1207, 139555), (1235, 136391), (1349, 124865), (1469, 114665), (1615, 104299), (1921, 87685), (2147, 78455), (4199, 40115), (4615, 36499), (6035, 27911), (6745, 24973), (7345, 22933), (8023, 20995), (9605, 17537), (10735, 15691)]