81639988

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{311}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 155151360

約数和(自身を除く): 73511372

約数列:

[1, 2, 4, 29, 31, 58, 62, 73, 116, 124, 146, 292, 311, 622, 899, 1244, 1798, 2117, 2263, 3596, 4234, 4526, 8468, 9019, 9052, 9641, 18038, 19282, 22703, 36076, 38564, 45406, 65627, 90812, 131254, 262508, 279589, 559178, 658387, 703793, 1118356, 1316774, 1407586, 2633548, 2815172, 20409997, 40819994, 81639988]

約数ペア:

[(1, 81639988), (2, 40819994), (4, 20409997), (29, 2815172), (31, 2633548), (58, 1407586), (62, 1316774), (73, 1118356), (116, 703793), (124, 658387), (146, 559178), (292, 279589), (311, 262508), (622, 131254), (899, 90812), (1244, 65627), (1798, 45406), (2117, 38564), (2263, 36076), (3596, 22703), (4234, 19282), (4526, 18038), (8468, 9641), (9019, 9052)]