64380519

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{283}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 112000512

約数和(自身を除く): 47619993

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 157, 161, 207, 283, 471, 483, 849, 1099, 1413, 1449, 1981, 2547, 3297, 3611, 5943, 6509, 9891, 10833, 17829, 19527, 25277, 32499, 44431, 45563, 58581, 75831, 133293, 136689, 227493, 311017, 399879, 410067, 933051, 1021913, 2799153, 3065739, 7153391, 9197217, 21460173, 64380519]

約数ペア:

[(1, 64380519), (3, 21460173), (7, 9197217), (9, 7153391), (21, 3065739), (23, 2799153), (63, 1021913), (69, 933051), (157, 410067), (161, 399879), (207, 311017), (283, 227493), (471, 136689), (483, 133293), (849, 75831), (1099, 58581), (1413, 45563), (1449, 44431), (1981, 32499), (2547, 25277), (3297, 19527), (3611, 17829), (5943, 10833), (6509, 9891)]