205465900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{569}}^1$

素因数の和:763

約数の個数: 72

約数和(自身を含む): 469032480

約数和(自身を除く): 263566580

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 157, 230, 314, 460, 569, 575, 628, 785, 1138, 1150, 1570, 2276, 2300, 2845, 3140, 3611, 3925, 5690, 7222, 7850, 11380, 13087, 14225, 14444, 15700, 18055, 26174, 28450, 36110, 52348, 56900, 65435, 72220, 89333, 90275, 130870, 178666, 180550, 261740, 327175, 357332, 361100, 446665, 654350, 893330, 1308700, 1786660, 2054659, 2233325, 4109318, 4466650, 8218636, 8933300, 10273295, 20546590, 41093180, 51366475, 102732950, 205465900]

約数ペア:

[(1, 205465900), (2, 102732950), (4, 51366475), (5, 41093180), (10, 20546590), (20, 10273295), (23, 8933300), (25, 8218636), (46, 4466650), (50, 4109318), (92, 2233325), (100, 2054659), (115, 1786660), (157, 1308700), (230, 893330), (314, 654350), (460, 446665), (569, 361100), (575, 357332), (628, 327175), (785, 261740), (1138, 180550), (1150, 178666), (1570, 130870), (2276, 90275), (2300, 89333), (2845, 72220), (3140, 65435), (3611, 56900), (3925, 52348), (5690, 36110), (7222, 28450), (7850, 26174), (11380, 18055), (13087, 15700), (14225, 14444)]