20037498

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 45505152

約数和(自身を除く): 25467654

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 53, 74, 78, 106, 111, 131, 159, 222, 262, 318, 393, 481, 689, 786, 962, 1378, 1443, 1703, 1961, 2067, 2886, 3406, 3922, 4134, 4847, 5109, 5883, 6943, 9694, 10218, 11766, 13886, 14541, 20829, 25493, 29082, 41658, 50986, 63011, 76479, 90259, 126022, 152958, 180518, 189033, 256891, 270777, 378066, 513782, 541554, 770673, 1541346, 3339583, 6679166, 10018749, 20037498]

約数ペア:

[(1, 20037498), (2, 10018749), (3, 6679166), (6, 3339583), (13, 1541346), (26, 770673), (37, 541554), (39, 513782), (53, 378066), (74, 270777), (78, 256891), (106, 189033), (111, 180518), (131, 152958), (159, 126022), (222, 90259), (262, 76479), (318, 63011), (393, 50986), (481, 41658), (689, 29082), (786, 25493), (962, 20829), (1378, 14541), (1443, 13886), (1703, 11766), (1961, 10218), (2067, 9694), (2886, 6943), (3406, 5883), (3922, 5109), (4134, 4847)]