16164020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{31}}^2$

素因数の和:129

約数の個数: 54

約数和(自身を含む): 36325926

約数和(自身を除く): 20161906

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 290, 310, 580, 620, 841, 899, 961, 1682, 1798, 1922, 3364, 3596, 3844, 4205, 4495, 4805, 8410, 8990, 9610, 16820, 17980, 19220, 26071, 27869, 52142, 55738, 104284, 111476, 130355, 139345, 260710, 278690, 521420, 557380, 808201, 1616402, 3232804, 4041005, 8082010, 16164020]

約数ペア:

[(1, 16164020), (2, 8082010), (4, 4041005), (5, 3232804), (10, 1616402), (20, 808201), (29, 557380), (31, 521420), (58, 278690), (62, 260710), (116, 139345), (124, 130355), (145, 111476), (155, 104284), (290, 55738), (310, 52142), (580, 27869), (620, 26071), (841, 19220), (899, 17980), (961, 16820), (1682, 9610), (1798, 8990), (1922, 8410), (3364, 4805), (3596, 4495), (3844, 4205)]