261868616

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{15991}}^1$

素因数の和:16109

約数の個数: 32

約数和(自身を含む): 518140800

約数和(自身を除く): 256272184

約数列:

[1, 2, 4, 8, 23, 46, 89, 92, 178, 184, 356, 712, 2047, 4094, 8188, 15991, 16376, 31982, 63964, 127928, 367793, 735586, 1423199, 1471172, 2846398, 2942344, 5692796, 11385592, 32733577, 65467154, 130934308, 261868616]

約数ペア:

[(1, 261868616), (2, 130934308), (4, 65467154), (8, 32733577), (23, 11385592), (46, 5692796), (89, 2942344), (92, 2846398), (178, 1471172), (184, 1423199), (356, 735586), (712, 367793), (2047, 127928), (4094, 63964), (8188, 31982), (15991, 16376)]