207956990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{3371}}^1$

素因数の和:3608

約数の個数: 32

約数和(自身を含む): 388454400

約数和(自身を除く): 180497410

約数列:

[1, 2, 5, 10, 31, 62, 155, 199, 310, 398, 995, 1990, 3371, 6169, 6742, 12338, 16855, 30845, 33710, 61690, 104501, 209002, 522505, 670829, 1045010, 1341658, 3354145, 6708290, 20795699, 41591398, 103978495, 207956990]

約数ペア:

[(1, 207956990), (2, 103978495), (5, 41591398), (10, 20795699), (31, 6708290), (62, 3354145), (155, 1341658), (199, 1045010), (310, 670829), (398, 522505), (995, 209002), (1990, 104501), (3371, 61690), (6169, 33710), (6742, 30845), (12338, 16855)]