68211905

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:146

約数の個数: 48

約数和(自身を含む): 95319504

約数和(自身を除く): 27107599

約数列:

[1, 5, 17, 23, 37, 41, 85, 115, 185, 205, 391, 529, 629, 697, 851, 943, 1517, 1955, 2645, 3145, 3485, 4255, 4715, 7585, 8993, 14467, 16031, 19573, 21689, 25789, 34891, 44965, 72335, 80155, 97865, 108445, 128945, 174455, 332741, 368713, 593147, 802493, 1663705, 1843565, 2965735, 4012465, 13642381, 68211905]

約数ペア:

[(1, 68211905), (5, 13642381), (17, 4012465), (23, 2965735), (37, 1843565), (41, 1663705), (85, 802493), (115, 593147), (185, 368713), (205, 332741), (391, 174455), (529, 128945), (629, 108445), (697, 97865), (851, 80155), (943, 72335), (1517, 44965), (1955, 34891), (2645, 25789), (3145, 21689), (3485, 19573), (4255, 16031), (4715, 14467), (7585, 8993)]