25609940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{307}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 55780032

約数和(自身を除く): 30170092

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 97, 172, 194, 215, 307, 388, 430, 485, 614, 860, 970, 1228, 1535, 1940, 3070, 4171, 6140, 8342, 13201, 16684, 20855, 26402, 29779, 41710, 52804, 59558, 66005, 83420, 119116, 132010, 148895, 264020, 297790, 595580, 1280497, 2560994, 5121988, 6402485, 12804970, 25609940]

約数ペア:

[(1, 25609940), (2, 12804970), (4, 6402485), (5, 5121988), (10, 2560994), (20, 1280497), (43, 595580), (86, 297790), (97, 264020), (172, 148895), (194, 132010), (215, 119116), (307, 83420), (388, 66005), (430, 59558), (485, 52804), (614, 41710), (860, 29779), (970, 26402), (1228, 20855), (1535, 16684), (1940, 13201), (3070, 8342), (4171, 6140)]