1620675

素因数分解:

$3^3\times 5^2\times 7^4$

素因数の和:47

約数の個数: 60

約数和(自身を含む): 3473240

約数和(自身を除く): 1852565

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 49, 63, 75, 105, 135, 147, 175, 189, 225, 245, 315, 343, 441, 525, 675, 735, 945, 1029, 1225, 1323, 1575, 1715, 2205, 2401, 3087, 3675, 4725, 5145, 6615, 7203, 8575, 9261, 11025, 12005, 15435, 21609, 25725, 33075, 36015, 46305, 60025, 64827, 77175, 108045, 180075, 231525, 324135, 540225, 1620675]

約数ペア:

[(1, 1620675), (3, 540225), (5, 324135), (7, 231525), (9, 180075), (15, 108045), (21, 77175), (25, 64827), (27, 60025), (35, 46305), (45, 36015), (49, 33075), (63, 25725), (75, 21609), (105, 15435), (135, 12005), (147, 11025), (175, 9261), (189, 8575), (225, 7203), (245, 6615), (315, 5145), (343, 4725), (441, 3675), (525, 3087), (675, 2401), (735, 2205), (945, 1715), (1029, 1575), (1225, 1323)]