51219880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{307}}^1$

素因数の和:458

約数の個数: 64

約数和(自身を含む): 119528640

約数和(自身を除く): 68308760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 97, 172, 194, 215, 307, 344, 388, 430, 485, 614, 776, 860, 970, 1228, 1535, 1720, 1940, 2456, 3070, 3880, 4171, 6140, 8342, 12280, 13201, 16684, 20855, 26402, 29779, 33368, 41710, 52804, 59558, 66005, 83420, 105608, 119116, 132010, 148895, 166840, 238232, 264020, 297790, 528040, 595580, 1191160, 1280497, 2560994, 5121988, 6402485, 10243976, 12804970, 25609940, 51219880]

約数ペア:

[(1, 51219880), (2, 25609940), (4, 12804970), (5, 10243976), (8, 6402485), (10, 5121988), (20, 2560994), (40, 1280497), (43, 1191160), (86, 595580), (97, 528040), (172, 297790), (194, 264020), (215, 238232), (307, 166840), (344, 148895), (388, 132010), (430, 119116), (485, 105608), (614, 83420), (776, 66005), (860, 59558), (970, 52804), (1228, 41710), (1535, 33368), (1720, 29779), (1940, 26402), (2456, 20855), (3070, 16684), (3880, 13201), (4171, 12280), (6140, 8342)]