285938125

素因数分解:

$5^4\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:260

約数の個数: 60

約数和(自身を含む): 415492000

約数和(自身を除く): 129553875

約数列:

[1, 5, 11, 19, 25, 55, 95, 121, 125, 199, 209, 275, 475, 605, 625, 995, 1045, 1375, 2189, 2299, 2375, 3025, 3781, 4975, 5225, 6875, 10945, 11495, 11875, 15125, 18905, 24079, 24875, 26125, 41591, 54725, 57475, 75625, 94525, 120395, 124375, 130625, 207955, 273625, 287375, 457501, 472625, 601975, 1039775, 1368125, 1436875, 2287505, 2363125, 3009875, 5198875, 11437525, 15049375, 25994375, 57187625, 285938125]

約数ペア:

[(1, 285938125), (5, 57187625), (11, 25994375), (19, 15049375), (25, 11437525), (55, 5198875), (95, 3009875), (121, 2363125), (125, 2287505), (199, 1436875), (209, 1368125), (275, 1039775), (475, 601975), (605, 472625), (625, 457501), (995, 287375), (1045, 273625), (1375, 207955), (2189, 130625), (2299, 124375), (2375, 120395), (3025, 94525), (3781, 75625), (4975, 57475), (5225, 54725), (6875, 41591), (10945, 26125), (11495, 24875), (11875, 24079), (15125, 18905)]