211439375

素因数分解:

$5^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1559}}^1$

素因数の和:1617

約数の個数: 40

約数和(自身を含む): 311900160

約数和(自身を除く): 100460785

約数列:

[1, 5, 7, 25, 31, 35, 125, 155, 175, 217, 625, 775, 875, 1085, 1559, 3875, 4375, 5425, 7795, 10913, 19375, 27125, 38975, 48329, 54565, 135625, 194875, 241645, 272825, 338303, 974375, 1208225, 1364125, 1691515, 6041125, 6820625, 8457575, 30205625, 42287875, 211439375]

約数ペア:

[(1, 211439375), (5, 42287875), (7, 30205625), (25, 8457575), (31, 6820625), (35, 6041125), (125, 1691515), (155, 1364125), (175, 1208225), (217, 974375), (625, 338303), (775, 272825), (875, 241645), (1085, 194875), (1559, 135625), (3875, 54565), (4375, 48329), (5425, 38975), (7795, 27125), (10913, 19375)]