20403076405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{56519}}^1$

素因数の和:56709

約数の個数: 32

約数和(自身を含む): 26955970560

約数和(自身を除く): 6552894155

約数列:

[1, 5, 17, 31, 85, 137, 155, 527, 685, 2329, 2635, 4247, 11645, 21235, 56519, 72199, 282595, 360995, 960823, 1752089, 4804115, 7743103, 8760445, 29785513, 38715515, 131632751, 148927565, 240036193, 658163755, 1200180965, 4080615281, 20403076405]

約数ペア:

[(1, 20403076405), (5, 4080615281), (17, 1200180965), (31, 658163755), (85, 240036193), (137, 148927565), (155, 131632751), (527, 38715515), (685, 29785513), (2329, 8760445), (2635, 7743103), (4247, 4804115), (11645, 1752089), (21235, 960823), (56519, 360995), (72199, 282595)]