31275615

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 61424640

約数和(自身を除く): 30149025

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 61, 95, 105, 133, 183, 257, 285, 305, 399, 427, 665, 771, 915, 1159, 1281, 1285, 1799, 1995, 2135, 3477, 3855, 4883, 5397, 5795, 6405, 8113, 8995, 14649, 15677, 17385, 24339, 24415, 26985, 34181, 40565, 47031, 73245, 78385, 102543, 109739, 121695, 170905, 235155, 297863, 329217, 512715, 548695, 893589, 1489315, 1646085, 2085041, 4467945, 6255123, 10425205, 31275615]

約数ペア:

[(1, 31275615), (3, 10425205), (5, 6255123), (7, 4467945), (15, 2085041), (19, 1646085), (21, 1489315), (35, 893589), (57, 548695), (61, 512715), (95, 329217), (105, 297863), (133, 235155), (183, 170905), (257, 121695), (285, 109739), (305, 102543), (399, 78385), (427, 73245), (665, 47031), (771, 40565), (915, 34181), (1159, 26985), (1281, 24415), (1285, 24339), (1799, 17385), (1995, 15677), (2135, 14649), (3477, 8995), (3855, 8113), (4883, 6405), (5397, 5795)]