208344860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{643}}^1\times {\mathrm{953}}^1$

素因数の和:1622

約数の個数: 48

約数和(自身を含む): 464468256

約数和(自身を除く): 256123396

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 643, 953, 1286, 1906, 2572, 3215, 3812, 4765, 6430, 9530, 10931, 12860, 16201, 19060, 21862, 32402, 43724, 54655, 64804, 81005, 109310, 162010, 218620, 324020, 612779, 1225558, 2451116, 3063895, 6127790, 10417243, 12255580, 20834486, 41668972, 52086215, 104172430, 208344860]

約数ペア:

[(1, 208344860), (2, 104172430), (4, 52086215), (5, 41668972), (10, 20834486), (17, 12255580), (20, 10417243), (34, 6127790), (68, 3063895), (85, 2451116), (170, 1225558), (340, 612779), (643, 324020), (953, 218620), (1286, 162010), (1906, 109310), (2572, 81005), (3215, 64804), (3812, 54655), (4765, 43724), (6430, 32402), (9530, 21862), (10931, 19060), (12860, 16201)]