20407728090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1\times {\mathrm{23893}}^1$

素因数の和:24375

約数の個数: 64

約数和(自身を含む): 49794331392

約数和(自身を除く): 29386603302

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 142, 213, 355, 401, 426, 710, 802, 1065, 1203, 2005, 2130, 2406, 4010, 6015, 12030, 23893, 28471, 47786, 56942, 71679, 85413, 119465, 142355, 143358, 170826, 238930, 284710, 358395, 427065, 716790, 854130, 1696403, 3392806, 5089209, 8482015, 9581093, 10178418, 16964030, 19162186, 25446045, 28743279, 47905465, 50892090, 57486558, 95810930, 143716395, 287432790, 680257603, 1360515206, 2040772809, 3401288015, 4081545618, 6802576030, 10203864045, 20407728090]

約数ペア:

[(1, 20407728090), (2, 10203864045), (3, 6802576030), (5, 4081545618), (6, 3401288015), (10, 2040772809), (15, 1360515206), (30, 680257603), (71, 287432790), (142, 143716395), (213, 95810930), (355, 57486558), (401, 50892090), (426, 47905465), (710, 28743279), (802, 25446045), (1065, 19162186), (1203, 16964030), (2005, 10178418), (2130, 9581093), (2406, 8482015), (4010, 5089209), (6015, 3392806), (12030, 1696403), (23893, 854130), (28471, 716790), (47786, 427065), (56942, 358395), (71679, 284710), (85413, 238930), (119465, 170826), (142355, 143358)]