21725800

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{4723}}^1$

素因数の和:4762

約数の個数: 48

約数和(自身を含む): 52719840

約数和(自身を除く): 30994040

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 184, 200, 230, 460, 575, 920, 1150, 2300, 4600, 4723, 9446, 18892, 23615, 37784, 47230, 94460, 108629, 118075, 188920, 217258, 236150, 434516, 472300, 543145, 869032, 944600, 1086290, 2172580, 2715725, 4345160, 5431450, 10862900, 21725800]

約数ペア:

[(1, 21725800), (2, 10862900), (4, 5431450), (5, 4345160), (8, 2715725), (10, 2172580), (20, 1086290), (23, 944600), (25, 869032), (40, 543145), (46, 472300), (50, 434516), (92, 236150), (100, 217258), (115, 188920), (184, 118075), (200, 108629), (230, 94460), (460, 47230), (575, 37784), (920, 23615), (1150, 18892), (2300, 9446), (4600, 4723)]