201720688

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{859}}^1\times {\mathrm{1129}}^1$

素因数の和:2009

約数の個数: 40

約数和(自身を含む): 421761200

約数和(自身を除く): 220040512

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 859, 1129, 1718, 2258, 3436, 4516, 6872, 9032, 11167, 13744, 14677, 18064, 22334, 29354, 44668, 58708, 89336, 117416, 178672, 234832, 969811, 1939622, 3879244, 7758488, 12607543, 15516976, 25215086, 50430172, 100860344, 201720688]

約数ペア:

[(1, 201720688), (2, 100860344), (4, 50430172), (8, 25215086), (13, 15516976), (16, 12607543), (26, 7758488), (52, 3879244), (104, 1939622), (208, 969811), (859, 234832), (1129, 178672), (1718, 117416), (2258, 89336), (3436, 58708), (4516, 44668), (6872, 29354), (9032, 22334), (11167, 18064), (13744, 14677)]