203977985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{389}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 269568000

約数和(自身を除く): 65590015

約数列:

[1, 5, 17, 31, 85, 155, 199, 389, 527, 995, 1945, 2635, 3383, 6169, 6613, 12059, 16915, 30845, 33065, 60295, 77411, 104873, 205003, 387055, 524365, 1025015, 1315987, 2399741, 6579935, 11998705, 40795597, 203977985]

約数ペア:

[(1, 203977985), (5, 40795597), (17, 11998705), (31, 6579935), (85, 2399741), (155, 1315987), (199, 1025015), (389, 524365), (527, 387055), (995, 205003), (1945, 104873), (2635, 77411), (3383, 60295), (6169, 33065), (6613, 30845), (12059, 16915)]