204080680

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{167}}^1\times {\mathrm{223}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 467389440

約数和(自身を除く): 263308760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 167, 223, 274, 334, 446, 548, 668, 685, 835, 892, 1096, 1115, 1336, 1370, 1670, 1784, 2230, 2740, 3340, 4460, 5480, 6680, 8920, 22879, 30551, 37241, 45758, 61102, 74482, 91516, 114395, 122204, 148964, 152755, 183032, 186205, 228790, 244408, 297928, 305510, 372410, 457580, 611020, 744820, 915160, 1222040, 1489640, 5102017, 10204034, 20408068, 25510085, 40816136, 51020170, 102040340, 204080680]

約数ペア:

[(1, 204080680), (2, 102040340), (4, 51020170), (5, 40816136), (8, 25510085), (10, 20408068), (20, 10204034), (40, 5102017), (137, 1489640), (167, 1222040), (223, 915160), (274, 744820), (334, 611020), (446, 457580), (548, 372410), (668, 305510), (685, 297928), (835, 244408), (892, 228790), (1096, 186205), (1115, 183032), (1336, 152755), (1370, 148964), (1670, 122204), (1784, 114395), (2230, 91516), (2740, 74482), (3340, 61102), (4460, 45758), (5480, 37241), (6680, 30551), (8920, 22879)]