168658900

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{643}}^1$

素因数の和:761

約数の個数: 72

約数和(自身を含む): 381232544

約数和(自身を除く): 212573644

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 61, 86, 100, 122, 172, 215, 244, 305, 430, 610, 643, 860, 1075, 1220, 1286, 1525, 2150, 2572, 2623, 3050, 3215, 4300, 5246, 6100, 6430, 10492, 12860, 13115, 16075, 26230, 27649, 32150, 39223, 52460, 55298, 64300, 65575, 78446, 110596, 131150, 138245, 156892, 196115, 262300, 276490, 392230, 552980, 691225, 784460, 980575, 1382450, 1686589, 1961150, 2764900, 3373178, 3922300, 6746356, 8432945, 16865890, 33731780, 42164725, 84329450, 168658900]

約数ペア:

[(1, 168658900), (2, 84329450), (4, 42164725), (5, 33731780), (10, 16865890), (20, 8432945), (25, 6746356), (43, 3922300), (50, 3373178), (61, 2764900), (86, 1961150), (100, 1686589), (122, 1382450), (172, 980575), (215, 784460), (244, 691225), (305, 552980), (430, 392230), (610, 276490), (643, 262300), (860, 196115), (1075, 156892), (1220, 138245), (1286, 131150), (1525, 110596), (2150, 78446), (2572, 65575), (2623, 64300), (3050, 55298), (3215, 52460), (4300, 39223), (5246, 32150), (6100, 27649), (6430, 26230), (10492, 16075), (12860, 13115)]