1389617788

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{398857}}^1$

素因数の和:398941

約数の個数: 24

約数和(自身を含む): 2657989712

約数和(自身を除く): 1268371924

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 268, 871, 1742, 3484, 398857, 797714, 1595428, 5185141, 10370282, 20740564, 26723419, 53446838, 106893676, 347404447, 694808894, 1389617788]

約数ペア:

[(1, 1389617788), (2, 694808894), (4, 347404447), (13, 106893676), (26, 53446838), (52, 26723419), (67, 20740564), (134, 10370282), (268, 5185141), (871, 1595428), (1742, 797714), (3484, 398857)]