25698868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{37}}^2$

素因数の和:129

約数の個数: 54

約数和(自身を含む): 52534566

約数和(自身を除く): 26835698

約数列:

[1, 2, 4, 13, 19, 26, 37, 38, 52, 74, 76, 148, 247, 361, 481, 494, 703, 722, 962, 988, 1369, 1406, 1444, 1924, 2738, 2812, 4693, 5476, 9139, 9386, 13357, 17797, 18278, 18772, 26011, 26714, 35594, 36556, 52022, 53428, 71188, 104044, 173641, 338143, 347282, 494209, 676286, 694564, 988418, 1352572, 1976836, 6424717, 12849434, 25698868]

約数ペア:

[(1, 25698868), (2, 12849434), (4, 6424717), (13, 1976836), (19, 1352572), (26, 988418), (37, 694564), (38, 676286), (52, 494209), (74, 347282), (76, 338143), (148, 173641), (247, 104044), (361, 71188), (481, 53428), (494, 52022), (703, 36556), (722, 35594), (962, 26714), (988, 26011), (1369, 18772), (1406, 18278), (1444, 17797), (1924, 13357), (2738, 9386), (2812, 9139), (4693, 5476)]