3920009985

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{16433}}^1$

素因数の和:16500

約数の個数: 80

約数和(自身を含む): 7635893760

約数和(自身を除く): 3715883775

約数列:

[1, 3, 5, 9, 15, 19, 27, 31, 45, 57, 81, 93, 95, 135, 155, 171, 279, 285, 405, 465, 513, 589, 837, 855, 1395, 1539, 1767, 2511, 2565, 2945, 4185, 5301, 7695, 8835, 12555, 15903, 16433, 26505, 47709, 49299, 79515, 82165, 147897, 238545, 246495, 312227, 443691, 509423, 739485, 936681, 1331073, 1528269, 1561135, 2218455, 2547115, 2810043, 4584807, 4683405, 6655365, 7641345, 8430129, 9679037, 13754421, 14050215, 22924035, 25290387, 29037111, 41263263, 42150645, 48395185, 68772105, 87111333, 126451935, 145185555, 206316315, 261333999, 435556665, 784001997, 1306669995, 3920009985]

約数ペア:

[(1, 3920009985), (3, 1306669995), (5, 784001997), (9, 435556665), (15, 261333999), (19, 206316315), (27, 145185555), (31, 126451935), (45, 87111333), (57, 68772105), (81, 48395185), (93, 42150645), (95, 41263263), (135, 29037111), (155, 25290387), (171, 22924035), (279, 14050215), (285, 13754421), (405, 9679037), (465, 8430129), (513, 7641345), (589, 6655365), (837, 4683405), (855, 4584807), (1395, 2810043), (1539, 2547115), (1767, 2218455), (2511, 1561135), (2565, 1528269), (2945, 1331073), (4185, 936681), (5301, 739485), (7695, 509423), (8835, 443691), (12555, 312227), (15903, 246495), (16433, 238545), (26505, 147897), (47709, 82165), (49299, 79515)]