1236820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:160

約数の個数: 48

約数和(自身を含む): 2878848

約数和(自身を除く): 1642028

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 71, 130, 134, 142, 260, 268, 284, 335, 355, 670, 710, 871, 923, 1340, 1420, 1742, 1846, 3484, 3692, 4355, 4615, 4757, 8710, 9230, 9514, 17420, 18460, 19028, 23785, 47570, 61841, 95140, 123682, 247364, 309205, 618410, 1236820]

約数ペア:

[(1, 1236820), (2, 618410), (4, 309205), (5, 247364), (10, 123682), (13, 95140), (20, 61841), (26, 47570), (52, 23785), (65, 19028), (67, 18460), (71, 17420), (130, 9514), (134, 9230), (142, 8710), (260, 4757), (268, 4615), (284, 4355), (335, 3692), (355, 3484), (670, 1846), (710, 1742), (871, 1420), (923, 1340)]