28665735

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{907}}^1$

素因数の和:972

約数の個数: 48

約数和(自身を含む): 54654336

約数和(自身を除く): 25988601

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 49, 105, 129, 147, 215, 245, 301, 645, 735, 903, 907, 1505, 2107, 2721, 4515, 4535, 6321, 6349, 10535, 13605, 19047, 31605, 31745, 39001, 44443, 95235, 117003, 133329, 195005, 222215, 273007, 585015, 666645, 819021, 1365035, 1911049, 4095105, 5733147, 9555245, 28665735]

約数ペア:

[(1, 28665735), (3, 9555245), (5, 5733147), (7, 4095105), (15, 1911049), (21, 1365035), (35, 819021), (43, 666645), (49, 585015), (105, 273007), (129, 222215), (147, 195005), (215, 133329), (245, 117003), (301, 95235), (645, 44443), (735, 39001), (903, 31745), (907, 31605), (1505, 19047), (2107, 13605), (2721, 10535), (4515, 6349), (4535, 6321)]