16391375

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1$

素因数の和:177

約数の個数: 64

約数和(自身を含む): 27675648

約数和(自身を除く): 11284273

約数列:

[1, 5, 7, 11, 13, 25, 35, 55, 65, 77, 91, 125, 131, 143, 175, 275, 325, 385, 455, 655, 715, 875, 917, 1001, 1375, 1441, 1625, 1703, 1925, 2275, 3275, 3575, 4585, 5005, 7205, 8515, 9625, 10087, 11375, 11921, 16375, 17875, 18733, 22925, 25025, 36025, 42575, 50435, 59605, 93665, 114625, 125125, 131131, 180125, 212875, 252175, 298025, 468325, 655655, 1260875, 1490125, 2341625, 3278275, 16391375]

約数ペア:

[(1, 16391375), (5, 3278275), (7, 2341625), (11, 1490125), (13, 1260875), (25, 655655), (35, 468325), (55, 298025), (65, 252175), (77, 212875), (91, 180125), (125, 131131), (131, 125125), (143, 114625), (175, 93665), (275, 59605), (325, 50435), (385, 42575), (455, 36025), (655, 25025), (715, 22925), (875, 18733), (917, 17875), (1001, 16375), (1375, 11921), (1441, 11375), (1625, 10087), (1703, 9625), (1925, 8515), (2275, 7205), (3275, 5005), (3575, 4585)]