18678804975

素因数分解:

$3^2\times 5^2\times {\mathrm{257}}^1\times {\mathrm{317}}^1\times {\mathrm{1019}}^1$

素因数の和:1609

約数の個数: 72

約数和(自身を含む): 33725006640

約数和(自身を除く): 15046201665

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 257, 317, 771, 951, 1019, 1285, 1585, 2313, 2853, 3057, 3855, 4755, 5095, 6425, 7925, 9171, 11565, 14265, 15285, 19275, 23775, 25475, 45855, 57825, 71325, 76425, 81469, 229275, 244407, 261883, 323023, 407345, 733221, 785649, 969069, 1222035, 1309415, 1615115, 2036725, 2356947, 2907207, 3666105, 3928245, 4845345, 6110175, 6547075, 8075575, 11784735, 14536035, 18330525, 19641225, 24226725, 58923675, 72680175, 83016911, 249050733, 415084555, 747152199, 1245253665, 2075422775, 3735760995, 6226268325, 18678804975]

約数ペア:

[(1, 18678804975), (3, 6226268325), (5, 3735760995), (9, 2075422775), (15, 1245253665), (25, 747152199), (45, 415084555), (75, 249050733), (225, 83016911), (257, 72680175), (317, 58923675), (771, 24226725), (951, 19641225), (1019, 18330525), (1285, 14536035), (1585, 11784735), (2313, 8075575), (2853, 6547075), (3057, 6110175), (3855, 4845345), (4755, 3928245), (5095, 3666105), (6425, 2907207), (7925, 2356947), (9171, 2036725), (11565, 1615115), (14265, 1309415), (15285, 1222035), (19275, 969069), (23775, 785649), (25475, 733221), (45855, 407345), (57825, 323023), (71325, 261883), (76425, 244407), (81469, 229275)]