16401385

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 27578880

約数和(自身を除く): 11177495

約数列:

[1, 5, 7, 11, 13, 29, 35, 55, 65, 77, 91, 113, 143, 145, 203, 319, 377, 385, 455, 565, 715, 791, 1001, 1015, 1243, 1469, 1595, 1885, 2233, 2639, 3277, 3955, 4147, 5005, 6215, 7345, 8701, 10283, 11165, 13195, 16159, 16385, 20735, 22939, 29029, 36047, 42601, 43505, 51415, 80795, 113113, 114695, 145145, 180235, 213005, 252329, 298207, 468611, 565565, 1261645, 1491035, 2343055, 3280277, 16401385]

約数ペア:

[(1, 16401385), (5, 3280277), (7, 2343055), (11, 1491035), (13, 1261645), (29, 565565), (35, 468611), (55, 298207), (65, 252329), (77, 213005), (91, 180235), (113, 145145), (143, 114695), (145, 113113), (203, 80795), (319, 51415), (377, 43505), (385, 42601), (455, 36047), (565, 29029), (715, 22939), (791, 20735), (1001, 16385), (1015, 16159), (1243, 13195), (1469, 11165), (1595, 10283), (1885, 8701), (2233, 7345), (2639, 6215), (3277, 5005), (3955, 4147)]