209833875

素因数分解:

$3^3\times 5^3\times {\mathrm{79}}^1\times {\mathrm{787}}^1$

素因数の和:890

約数の個数: 64

約数和(自身を含む): 393369600

約数和(自身を除く): 183535725

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 79, 125, 135, 225, 237, 375, 395, 675, 711, 787, 1125, 1185, 1975, 2133, 2361, 3375, 3555, 3935, 5925, 7083, 9875, 10665, 11805, 17775, 19675, 21249, 29625, 35415, 53325, 59025, 62173, 88875, 98375, 106245, 177075, 186519, 266625, 295125, 310865, 531225, 559557, 885375, 932595, 1554325, 1678671, 2656125, 2797785, 4662975, 7771625, 8393355, 13988925, 23314875, 41966775, 69944625, 209833875]

約数ペア:

[(1, 209833875), (3, 69944625), (5, 41966775), (9, 23314875), (15, 13988925), (25, 8393355), (27, 7771625), (45, 4662975), (75, 2797785), (79, 2656125), (125, 1678671), (135, 1554325), (225, 932595), (237, 885375), (375, 559557), (395, 531225), (675, 310865), (711, 295125), (787, 266625), (1125, 186519), (1185, 177075), (1975, 106245), (2133, 98375), (2361, 88875), (3375, 62173), (3555, 59025), (3935, 53325), (5925, 35415), (7083, 29625), (9875, 21249), (10665, 19675), (11805, 17775)]