205874865

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{719}}^1$

素因数の和:844

約数の個数: 80

約数和(自身を含む): 426539520

約数和(自身を除く): 220664655

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 101, 105, 135, 189, 303, 315, 405, 505, 567, 707, 719, 909, 945, 1515, 2121, 2157, 2727, 2835, 3535, 3595, 4545, 5033, 6363, 6471, 8181, 10605, 10785, 13635, 15099, 19089, 19413, 25165, 31815, 32355, 40905, 45297, 57267, 58239, 72619, 75495, 95445, 97065, 135891, 217857, 226485, 286335, 291195, 363095, 407673, 508333, 653571, 679455, 1089285, 1524999, 1960713, 2038365, 2541665, 3267855, 4574997, 5882139, 7624995, 9803565, 13724991, 22874985, 29410695, 41174973, 68624955, 205874865]

約数ペア:

[(1, 205874865), (3, 68624955), (5, 41174973), (7, 29410695), (9, 22874985), (15, 13724991), (21, 9803565), (27, 7624995), (35, 5882139), (45, 4574997), (63, 3267855), (81, 2541665), (101, 2038365), (105, 1960713), (135, 1524999), (189, 1089285), (303, 679455), (315, 653571), (405, 508333), (505, 407673), (567, 363095), (707, 291195), (719, 286335), (909, 226485), (945, 217857), (1515, 135891), (2121, 97065), (2157, 95445), (2727, 75495), (2835, 72619), (3535, 58239), (3595, 57267), (4545, 45297), (5033, 40905), (6363, 32355), (6471, 31815), (8181, 25165), (10605, 19413), (10785, 19089), (13635, 15099)]