18437375

素因数分解:

$5^3\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:113

約数の個数: 48

約数和(自身を含む): 26889408

約数和(自身を除く): 8452033

約数列:

[1, 5, 11, 23, 25, 53, 55, 115, 121, 125, 253, 265, 275, 575, 583, 605, 1219, 1265, 1325, 1375, 2783, 2875, 2915, 3025, 6095, 6325, 6413, 6625, 13409, 13915, 14575, 15125, 30475, 31625, 32065, 67045, 69575, 72875, 147499, 152375, 160325, 335225, 347875, 737495, 801625, 1676125, 3687475, 18437375]

約数ペア:

[(1, 18437375), (5, 3687475), (11, 1676125), (23, 801625), (25, 737495), (53, 347875), (55, 335225), (115, 160325), (121, 152375), (125, 147499), (253, 72875), (265, 69575), (275, 67045), (575, 32065), (583, 31625), (605, 30475), (1219, 15125), (1265, 14575), (1325, 13915), (1375, 13409), (2783, 6625), (2875, 6413), (2915, 6325), (3025, 6095)]