20804076475

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{1889}}^1$

素因数の和:2069

約数の個数: 96

約数和(自身を含む): 32757903360

約数和(自身を除く): 11953826885

約数列:

[1, 5, 7, 13, 25, 35, 47, 65, 91, 103, 175, 235, 325, 329, 455, 515, 611, 721, 1175, 1339, 1645, 1889, 2275, 2575, 3055, 3605, 4277, 4841, 6695, 8225, 9373, 9445, 13223, 15275, 18025, 21385, 24205, 24557, 33475, 33887, 46865, 47225, 62933, 66115, 88783, 106925, 121025, 122785, 169435, 171899, 194567, 234325, 314665, 330575, 440531, 443915, 613925, 621481, 847175, 859495, 972835, 1154179, 1361969, 1573325, 2202655, 2219575, 2529371, 3107405, 4297475, 4864175, 5770895, 6809845, 8079253, 9144649, 11013275, 12646855, 15537025, 17705597, 28854475, 34049225, 40396265, 45723245, 63234275, 64012543, 88527985, 118880437, 201981325, 228616225, 320062715, 442639925, 594402185, 832163059, 1600313575, 2972010925, 4160815295, 20804076475]

約数ペア:

[(1, 20804076475), (5, 4160815295), (7, 2972010925), (13, 1600313575), (25, 832163059), (35, 594402185), (47, 442639925), (65, 320062715), (91, 228616225), (103, 201981325), (175, 118880437), (235, 88527985), (325, 64012543), (329, 63234275), (455, 45723245), (515, 40396265), (611, 34049225), (721, 28854475), (1175, 17705597), (1339, 15537025), (1645, 12646855), (1889, 11013275), (2275, 9144649), (2575, 8079253), (3055, 6809845), (3605, 5770895), (4277, 4864175), (4841, 4297475), (6695, 3107405), (8225, 2529371), (9373, 2219575), (9445, 2202655), (13223, 1573325), (15275, 1361969), (18025, 1154179), (21385, 972835), (24205, 859495), (24557, 847175), (33475, 621481), (33887, 613925), (46865, 443915), (47225, 440531), (62933, 330575), (66115, 314665), (88783, 234325), (106925, 194567), (121025, 171899), (122785, 169435)]