2078967020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{6911}}^1$

素因数の和:7035

約数の個数: 72

約数和(自身を含む): 4781306880

約数和(自身を除く): 2702339860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 169, 178, 260, 338, 356, 445, 676, 845, 890, 1157, 1690, 1780, 2314, 3380, 4628, 5785, 6911, 11570, 13822, 15041, 23140, 27644, 30082, 34555, 60164, 69110, 75205, 89843, 138220, 150410, 179686, 300820, 359372, 449215, 615079, 898430, 1167959, 1230158, 1796860, 2335918, 2460316, 3075395, 4671836, 5839795, 6150790, 7996027, 11679590, 12301580, 15992054, 23359180, 31984108, 39980135, 79960270, 103948351, 159920540, 207896702, 415793404, 519741755, 1039483510, 2078967020]

約数ペア:

[(1, 2078967020), (2, 1039483510), (4, 519741755), (5, 415793404), (10, 207896702), (13, 159920540), (20, 103948351), (26, 79960270), (52, 39980135), (65, 31984108), (89, 23359180), (130, 15992054), (169, 12301580), (178, 11679590), (260, 7996027), (338, 6150790), (356, 5839795), (445, 4671836), (676, 3075395), (845, 2460316), (890, 2335918), (1157, 1796860), (1690, 1230158), (1780, 1167959), (2314, 898430), (3380, 615079), (4628, 449215), (5785, 359372), (6911, 300820), (11570, 179686), (13822, 150410), (15041, 138220), (23140, 89843), (27644, 75205), (30082, 69110), (34555, 60164)]