781243515

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{2731}}^1$

素因数の和:2921

約数の個数: 64

約数和(自身を含む): 1505441280

約数和(自身を除く): 724197765

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 163, 195, 351, 489, 585, 815, 1467, 1755, 2119, 2445, 2731, 4401, 6357, 7335, 8193, 10595, 13655, 19071, 22005, 24579, 31785, 35503, 40965, 57213, 73737, 95355, 106509, 122895, 177515, 286065, 319527, 368685, 445153, 532545, 958581, 1335459, 1597635, 2225765, 4006377, 4792905, 5786989, 6677295, 12019131, 17360967, 20031885, 28934945, 52082901, 60095655, 86804835, 156248703, 260414505, 781243515]

約数ペア:

[(1, 781243515), (3, 260414505), (5, 156248703), (9, 86804835), (13, 60095655), (15, 52082901), (27, 28934945), (39, 20031885), (45, 17360967), (65, 12019131), (117, 6677295), (135, 5786989), (163, 4792905), (195, 4006377), (351, 2225765), (489, 1597635), (585, 1335459), (815, 958581), (1467, 532545), (1755, 445153), (2119, 368685), (2445, 319527), (2731, 286065), (4401, 177515), (6357, 122895), (7335, 106509), (8193, 95355), (10595, 73737), (13655, 57213), (19071, 40965), (22005, 35503), (24579, 31785)]