209212250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{64373}}^1$

素因数の和:64403

約数の個数: 32

約数和(自身を含む): 421778448

約数和(自身を除く): 212566198

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1625, 3250, 64373, 128746, 321865, 643730, 836849, 1609325, 1673698, 3218650, 4184245, 8046625, 8368490, 16093250, 20921225, 41842450, 104606125, 209212250]

約数ペア:

[(1, 209212250), (2, 104606125), (5, 41842450), (10, 20921225), (13, 16093250), (25, 8368490), (26, 8046625), (50, 4184245), (65, 3218650), (125, 1673698), (130, 1609325), (250, 836849), (325, 643730), (650, 321865), (1625, 128746), (3250, 64373)]