64981395

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{491}}^1$

素因数の和:692

約数の個数: 48

約数和(自身を含む): 120193632

約数和(自身を除く): 55212237

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 173, 255, 491, 519, 765, 865, 1473, 1557, 2455, 2595, 2941, 4419, 7365, 7785, 8347, 8823, 14705, 22095, 25041, 26469, 41735, 44115, 75123, 84943, 125205, 132345, 254829, 375615, 424715, 764487, 1274145, 1444031, 3822435, 4332093, 7220155, 12996279, 21660465, 64981395]

約数ペア:

[(1, 64981395), (3, 21660465), (5, 12996279), (9, 7220155), (15, 4332093), (17, 3822435), (45, 1444031), (51, 1274145), (85, 764487), (153, 424715), (173, 375615), (255, 254829), (491, 132345), (519, 125205), (765, 84943), (865, 75123), (1473, 44115), (1557, 41735), (2455, 26469), (2595, 25041), (2941, 22095), (4419, 14705), (7365, 8823), (7785, 8347)]