205508625

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{991}}^1$

素因数の和:1095

約数の個数: 64

約数和(自身を含む): 396165120

約数和(自身を除く): 190656495

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 79, 105, 125, 175, 237, 375, 395, 525, 553, 875, 991, 1185, 1659, 1975, 2625, 2765, 2973, 4955, 5925, 6937, 8295, 9875, 13825, 14865, 20811, 24775, 29625, 34685, 41475, 69125, 74325, 78289, 104055, 123875, 173425, 207375, 234867, 371625, 391445, 520275, 548023, 867125, 1174335, 1644069, 1957225, 2601375, 2740115, 5871675, 8220345, 9786125, 13700575, 29358375, 41101725, 68502875, 205508625]

約数ペア:

[(1, 205508625), (3, 68502875), (5, 41101725), (7, 29358375), (15, 13700575), (21, 9786125), (25, 8220345), (35, 5871675), (75, 2740115), (79, 2601375), (105, 1957225), (125, 1644069), (175, 1174335), (237, 867125), (375, 548023), (395, 520275), (525, 391445), (553, 371625), (875, 234867), (991, 207375), (1185, 173425), (1659, 123875), (1975, 104055), (2625, 78289), (2765, 74325), (2973, 69125), (4955, 41475), (5925, 34685), (6937, 29625), (8295, 24775), (9875, 20811), (13825, 14865)]