28770345

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 51996672

約数和(自身を除く): 23226327

約数列:

[1, 3, 5, 9, 15, 45, 47, 61, 141, 183, 223, 235, 305, 423, 549, 669, 705, 915, 1115, 2007, 2115, 2745, 2867, 3345, 8601, 10035, 10481, 13603, 14335, 25803, 31443, 40809, 43005, 52405, 68015, 94329, 122427, 129015, 157215, 204045, 471645, 612135, 639341, 1918023, 3196705, 5754069, 9590115, 28770345]

約数ペア:

[(1, 28770345), (3, 9590115), (5, 5754069), (9, 3196705), (15, 1918023), (45, 639341), (47, 612135), (61, 471645), (141, 204045), (183, 157215), (223, 129015), (235, 122427), (305, 94329), (423, 68015), (549, 52405), (669, 43005), (705, 40809), (915, 31443), (1115, 25803), (2007, 14335), (2115, 13603), (2745, 10481), (2867, 10035), (3345, 8601)]