19780944

素因数分解:

$2^4\times 3^1\times {\mathrm{103}}^1\times {\mathrm{4001}}^1$

素因数の和:4115

約数の個数: 40

約数和(自身を含む): 51609792

約数和(自身を除く): 31828848

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 103, 206, 309, 412, 618, 824, 1236, 1648, 2472, 4001, 4944, 8002, 12003, 16004, 24006, 32008, 48012, 64016, 96024, 192048, 412103, 824206, 1236309, 1648412, 2472618, 3296824, 4945236, 6593648, 9890472, 19780944]

約数ペア:

[(1, 19780944), (2, 9890472), (3, 6593648), (4, 4945236), (6, 3296824), (8, 2472618), (12, 1648412), (16, 1236309), (24, 824206), (48, 412103), (103, 192048), (206, 96024), (309, 64016), (412, 48012), (618, 32008), (824, 24006), (1236, 16004), (1648, 12003), (2472, 8002), (4001, 4944)]