20108694515

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1\times {\mathrm{2857}}^1$

素因数の和:3412

約数の個数: 64

約数和(自身を含む): 30729216000

約数和(自身を除く): 10620521485

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 155, 217, 403, 455, 499, 1085, 2015, 2495, 2821, 2857, 3493, 6487, 14105, 14285, 15469, 17465, 19999, 32435, 37141, 45409, 77345, 88567, 99995, 108283, 185705, 201097, 227045, 259987, 442835, 541415, 619969, 1005485, 1151371, 1299935, 1407679, 1425643, 3099845, 5756855, 7038395, 7128215, 8059597, 9979501, 18533359, 40297985, 44194933, 49897505, 92666795, 129733513, 220974665, 309364531, 574534129, 648667565, 1546822655, 2872670645, 4021738903, 20108694515]

約数ペア:

[(1, 20108694515), (5, 4021738903), (7, 2872670645), (13, 1546822655), (31, 648667565), (35, 574534129), (65, 309364531), (91, 220974665), (155, 129733513), (217, 92666795), (403, 49897505), (455, 44194933), (499, 40297985), (1085, 18533359), (2015, 9979501), (2495, 8059597), (2821, 7128215), (2857, 7038395), (3493, 5756855), (6487, 3099845), (14105, 1425643), (14285, 1407679), (15469, 1299935), (17465, 1151371), (19999, 1005485), (32435, 619969), (37141, 541415), (45409, 442835), (77345, 259987), (88567, 227045), (99995, 201097), (108283, 185705)]