38939725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 55978560

約数和(自身を除く): 17038835

約数列:

[1, 5, 11, 25, 37, 43, 55, 89, 185, 215, 275, 407, 445, 473, 925, 979, 1075, 1591, 2035, 2225, 2365, 3293, 3827, 4895, 7955, 10175, 11825, 16465, 17501, 19135, 24475, 36223, 39775, 42097, 82325, 87505, 95675, 141599, 181115, 210485, 437525, 707995, 905575, 1052425, 1557589, 3539975, 7787945, 38939725]

約数ペア:

[(1, 38939725), (5, 7787945), (11, 3539975), (25, 1557589), (37, 1052425), (43, 905575), (55, 707995), (89, 437525), (185, 210485), (215, 181115), (275, 141599), (407, 95675), (445, 87505), (473, 82325), (925, 42097), (979, 39775), (1075, 36223), (1591, 24475), (2035, 19135), (2225, 17501), (2365, 16465), (3293, 11825), (3827, 10175), (4895, 7955)]