64428555

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{823}}^1$

素因数の和:1155

約数の個数: 32

約数和(自身を含む): 109638144

約数和(自身を除く): 45209589

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 307, 823, 921, 1535, 2469, 4115, 4605, 5219, 12345, 13991, 15657, 26095, 41973, 69955, 78285, 209865, 252661, 757983, 1263305, 3789915, 4295237, 12885711, 21476185, 64428555]

約数ペア:

[(1, 64428555), (3, 21476185), (5, 12885711), (15, 4295237), (17, 3789915), (51, 1263305), (85, 757983), (255, 252661), (307, 209865), (823, 78285), (921, 69955), (1535, 41973), (2469, 26095), (4115, 15657), (4605, 13991), (5219, 12345)]