28506465

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{439}}^1$

素因数の和:503

約数の個数: 64

約数和(自身を含む): 56179200

約数和(自身を除く): 27672735

約数列:

[1, 3, 5, 9, 13, 15, 27, 37, 39, 45, 65, 111, 117, 135, 185, 195, 333, 351, 439, 481, 555, 585, 999, 1317, 1443, 1665, 1755, 2195, 2405, 3951, 4329, 4995, 5707, 6585, 7215, 11853, 12987, 16243, 17121, 19755, 21645, 28535, 48729, 51363, 59265, 64935, 81215, 85605, 146187, 154089, 211159, 243645, 256815, 438561, 633477, 730935, 770445, 1055795, 1900431, 2192805, 3167385, 5701293, 9502155, 28506465]

約数ペア:

[(1, 28506465), (3, 9502155), (5, 5701293), (9, 3167385), (13, 2192805), (15, 1900431), (27, 1055795), (37, 770445), (39, 730935), (45, 633477), (65, 438561), (111, 256815), (117, 243645), (135, 211159), (185, 154089), (195, 146187), (333, 85605), (351, 81215), (439, 64935), (481, 59265), (555, 51363), (585, 48729), (999, 28535), (1317, 21645), (1443, 19755), (1665, 17121), (1755, 16243), (2195, 12987), (2405, 11853), (3951, 7215), (4329, 6585), (4995, 5707)]