2905725

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:126

約数の個数: 48

約数和(自身を含む): 5303232

約数和(自身を除く): 2397507

約数列:

[1, 3, 5, 15, 17, 25, 43, 51, 53, 75, 85, 129, 159, 215, 255, 265, 425, 645, 731, 795, 901, 1075, 1275, 1325, 2193, 2279, 2703, 3225, 3655, 3975, 4505, 6837, 10965, 11395, 13515, 18275, 22525, 34185, 38743, 54825, 56975, 67575, 116229, 170925, 193715, 581145, 968575, 2905725]

約数ペア:

[(1, 2905725), (3, 968575), (5, 581145), (15, 193715), (17, 170925), (25, 116229), (43, 67575), (51, 56975), (53, 54825), (75, 38743), (85, 34185), (129, 22525), (159, 18275), (215, 13515), (255, 11395), (265, 10965), (425, 6837), (645, 4505), (731, 3975), (795, 3655), (901, 3225), (1075, 2703), (1275, 2279), (1325, 2193)]