18836300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{379}}^1$

素因数の和:471

約数の個数: 72

約数和(自身を含む): 47496960

約数和(自身を除く): 28660660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 71, 100, 140, 142, 175, 284, 350, 355, 379, 497, 700, 710, 758, 994, 1420, 1516, 1775, 1895, 1988, 2485, 2653, 3550, 3790, 4970, 5306, 7100, 7580, 9475, 9940, 10612, 12425, 13265, 18950, 24850, 26530, 26909, 37900, 49700, 53060, 53818, 66325, 107636, 132650, 134545, 188363, 265300, 269090, 376726, 538180, 672725, 753452, 941815, 1345450, 1883630, 2690900, 3767260, 4709075, 9418150, 18836300]

約数ペア:

[(1, 18836300), (2, 9418150), (4, 4709075), (5, 3767260), (7, 2690900), (10, 1883630), (14, 1345450), (20, 941815), (25, 753452), (28, 672725), (35, 538180), (50, 376726), (70, 269090), (71, 265300), (100, 188363), (140, 134545), (142, 132650), (175, 107636), (284, 66325), (350, 53818), (355, 53060), (379, 49700), (497, 37900), (700, 26909), (710, 26530), (758, 24850), (994, 18950), (1420, 13265), (1516, 12425), (1775, 10612), (1895, 9940), (1988, 9475), (2485, 7580), (2653, 7100), (3550, 5306), (3790, 4970)]