209414925

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1033}}^1$

素因数の和:1119

約数の個数: 72

約数和(自身を含む): 405034344

約数和(自身を除く): 195619419

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 53, 75, 85, 153, 159, 225, 255, 265, 425, 477, 765, 795, 901, 1033, 1275, 1325, 2385, 2703, 3099, 3825, 3975, 4505, 5165, 8109, 9297, 11925, 13515, 15495, 17561, 22525, 25825, 40545, 46485, 52683, 54749, 67575, 77475, 87805, 158049, 164247, 202725, 232425, 263415, 273745, 439025, 492741, 790245, 821235, 930733, 1317075, 1368725, 2463705, 2792199, 3951225, 4106175, 4653665, 8376597, 12318525, 13960995, 23268325, 41882985, 69804975, 209414925]

約数ペア:

[(1, 209414925), (3, 69804975), (5, 41882985), (9, 23268325), (15, 13960995), (17, 12318525), (25, 8376597), (45, 4653665), (51, 4106175), (53, 3951225), (75, 2792199), (85, 2463705), (153, 1368725), (159, 1317075), (225, 930733), (255, 821235), (265, 790245), (425, 492741), (477, 439025), (765, 273745), (795, 263415), (901, 232425), (1033, 202725), (1275, 164247), (1325, 158049), (2385, 87805), (2703, 77475), (3099, 67575), (3825, 54749), (3975, 52683), (4505, 46485), (5165, 40545), (8109, 25825), (9297, 22525), (11925, 17561), (13515, 15495)]