38720475

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:277

約数の個数: 72

約数和(自身を含む): 75209472

約数和(自身を除く): 36488997

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 53, 75, 85, 153, 159, 191, 225, 255, 265, 425, 477, 573, 765, 795, 901, 955, 1275, 1325, 1719, 2385, 2703, 2865, 3247, 3825, 3975, 4505, 4775, 8109, 8595, 9741, 10123, 11925, 13515, 14325, 16235, 22525, 29223, 30369, 40545, 42975, 48705, 50615, 67575, 81175, 91107, 146115, 151845, 172091, 202725, 243525, 253075, 455535, 516273, 730575, 759225, 860455, 1548819, 2277675, 2581365, 4302275, 7744095, 12906825, 38720475]

約数ペア:

[(1, 38720475), (3, 12906825), (5, 7744095), (9, 4302275), (15, 2581365), (17, 2277675), (25, 1548819), (45, 860455), (51, 759225), (53, 730575), (75, 516273), (85, 455535), (153, 253075), (159, 243525), (191, 202725), (225, 172091), (255, 151845), (265, 146115), (425, 91107), (477, 81175), (573, 67575), (765, 50615), (795, 48705), (901, 42975), (955, 40545), (1275, 30369), (1325, 29223), (1719, 22525), (2385, 16235), (2703, 14325), (2865, 13515), (3247, 11925), (3825, 10123), (3975, 9741), (4505, 8595), (4775, 8109)]