1905615

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:128

約数の個数: 48

約数和(自身を含む): 3639168

約数和(自身を除く): 1733553

約数列:

[1, 3, 5, 9, 15, 17, 45, 47, 51, 53, 85, 141, 153, 159, 235, 255, 265, 423, 477, 705, 765, 795, 799, 901, 2115, 2385, 2397, 2491, 2703, 3995, 4505, 7191, 7473, 8109, 11985, 12455, 13515, 22419, 35955, 37365, 40545, 42347, 112095, 127041, 211735, 381123, 635205, 1905615]

約数ペア:

[(1, 1905615), (3, 635205), (5, 381123), (9, 211735), (15, 127041), (17, 112095), (45, 42347), (47, 40545), (51, 37365), (53, 35955), (85, 22419), (141, 13515), (153, 12455), (159, 11985), (235, 8109), (255, 7473), (265, 7191), (423, 4505), (477, 3995), (705, 2703), (765, 2491), (795, 2397), (799, 2385), (901, 2115)]