28782215

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{74759}}^1$

素因数の和:74782

約数の個数: 16

約数和(自身を含む): 43061760

約数和(自身を除く): 14279545

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 74759, 373795, 523313, 822349, 2616565, 4111745, 5756443, 28782215]

約数ペア:

[(1, 28782215), (5, 5756443), (7, 4111745), (11, 2616565), (35, 822349), (55, 523313), (77, 373795), (385, 74759)]