208501904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{16433}}^1$

素因数の和:16515

約数の個数: 40

約数和(自身を含む): 442206072

約数和(自身を除く): 233704168

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 61, 104, 122, 208, 244, 488, 793, 976, 1586, 3172, 6344, 12688, 16433, 32866, 65732, 131464, 213629, 262928, 427258, 854516, 1002413, 1709032, 2004826, 3418064, 4009652, 8019304, 13031369, 16038608, 26062738, 52125476, 104250952, 208501904]

約数ペア:

[(1, 208501904), (2, 104250952), (4, 52125476), (8, 26062738), (13, 16038608), (16, 13031369), (26, 8019304), (52, 4009652), (61, 3418064), (104, 2004826), (122, 1709032), (208, 1002413), (244, 854516), (488, 427258), (793, 262928), (976, 213629), (1586, 131464), (3172, 65732), (6344, 32866), (12688, 16433)]