620865

素因数分解:

$3^5\times 5^1\times 7^1\times {\mathrm{73}}^1$

素因数の和:100

約数の個数: 48

約数和(自身を含む): 1292928

約数和(自身を除く): 672063

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 73, 81, 105, 135, 189, 219, 243, 315, 365, 405, 511, 567, 657, 945, 1095, 1215, 1533, 1701, 1971, 2555, 2835, 3285, 4599, 5913, 7665, 8505, 9855, 13797, 17739, 22995, 29565, 41391, 68985, 88695, 124173, 206955, 620865]

約数ペア:

[(1, 620865), (3, 206955), (5, 124173), (7, 88695), (9, 68985), (15, 41391), (21, 29565), (27, 22995), (35, 17739), (45, 13797), (63, 9855), (73, 8505), (81, 7665), (105, 5913), (135, 4599), (189, 3285), (219, 2835), (243, 2555), (315, 1971), (365, 1701), (405, 1533), (511, 1215), (567, 1095), (657, 945)]