208874260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{1627}}^1$

素因数の和:1781

約数の個数: 72

約数和(自身を含む): 514461024

約数和(自身を除く): 305586764

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 131, 140, 196, 245, 262, 490, 524, 655, 917, 980, 1310, 1627, 1834, 2620, 3254, 3668, 4585, 6419, 6508, 8135, 9170, 11389, 12838, 16270, 18340, 22778, 25676, 32095, 32540, 45556, 56945, 64190, 79723, 113890, 128380, 159446, 213137, 227780, 318892, 398615, 426274, 797230, 852548, 1065685, 1491959, 1594460, 2131370, 2983918, 4262740, 5967836, 7459795, 10443713, 14919590, 20887426, 29839180, 41774852, 52218565, 104437130, 208874260]

約数ペア:

[(1, 208874260), (2, 104437130), (4, 52218565), (5, 41774852), (7, 29839180), (10, 20887426), (14, 14919590), (20, 10443713), (28, 7459795), (35, 5967836), (49, 4262740), (70, 2983918), (98, 2131370), (131, 1594460), (140, 1491959), (196, 1065685), (245, 852548), (262, 797230), (490, 426274), (524, 398615), (655, 318892), (917, 227780), (980, 213137), (1310, 159446), (1627, 128380), (1834, 113890), (2620, 79723), (3254, 64190), (3668, 56945), (4585, 45556), (6419, 32540), (6508, 32095), (8135, 25676), (9170, 22778), (11389, 18340), (12838, 16270)]