31681020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{75431}}^1$

素因数の和:75450

約数の個数: 48

約数和(自身を含む): 101380608

約数和(自身を除く): 69699588

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 75431, 150862, 226293, 301724, 377155, 452586, 528017, 754310, 905172, 1056034, 1131465, 1508620, 1584051, 2112068, 2262930, 2640085, 3168102, 4525860, 5280170, 6336204, 7920255, 10560340, 15840510, 31681020]

約数ペア:

[(1, 31681020), (2, 15840510), (3, 10560340), (4, 7920255), (5, 6336204), (6, 5280170), (7, 4525860), (10, 3168102), (12, 2640085), (14, 2262930), (15, 2112068), (20, 1584051), (21, 1508620), (28, 1131465), (30, 1056034), (35, 905172), (42, 754310), (60, 528017), (70, 452586), (84, 377155), (105, 301724), (140, 226293), (210, 150862), (420, 75431)]