20178342015

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{164513}}^1$

素因数の和:164588

約数の個数: 64

約数和(自身を含む): 37809265536

約数和(自身を除く): 17630923521

約数列:

[1, 3, 5, 13, 15, 17, 37, 39, 51, 65, 85, 111, 185, 195, 221, 255, 481, 555, 629, 663, 1105, 1443, 1887, 2405, 3145, 3315, 7215, 8177, 9435, 24531, 40885, 122655, 164513, 493539, 822565, 2138669, 2467695, 2796721, 6086981, 6416007, 8390163, 10693345, 13983605, 18260943, 30434905, 32080035, 36357373, 41950815, 79130753, 91304715, 103478677, 109072119, 181786865, 237392259, 310436031, 395653765, 517393385, 545360595, 1186961295, 1345222801, 1552180155, 4035668403, 6726114005, 20178342015]

約数ペア:

[(1, 20178342015), (3, 6726114005), (5, 4035668403), (13, 1552180155), (15, 1345222801), (17, 1186961295), (37, 545360595), (39, 517393385), (51, 395653765), (65, 310436031), (85, 237392259), (111, 181786865), (185, 109072119), (195, 103478677), (221, 91304715), (255, 79130753), (481, 41950815), (555, 36357373), (629, 32080035), (663, 30434905), (1105, 18260943), (1443, 13983605), (1887, 10693345), (2405, 8390163), (3145, 6416007), (3315, 6086981), (7215, 2796721), (8177, 2467695), (9435, 2138669), (24531, 822565), (40885, 493539), (122655, 164513)]