16955125

素因数分解:

$5^3\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:115

約数の個数: 48

約数和(自身を含む): 24897600

約数和(自身を除く): 7942475

約数列:

[1, 5, 11, 19, 25, 55, 59, 95, 121, 125, 209, 275, 295, 475, 605, 649, 1045, 1121, 1375, 1475, 2299, 2375, 3025, 3245, 5225, 5605, 7139, 7375, 11495, 12331, 15125, 16225, 26125, 28025, 35695, 57475, 61655, 81125, 135641, 140125, 178475, 287375, 308275, 678205, 892375, 1541375, 3391025, 16955125]

約数ペア:

[(1, 16955125), (5, 3391025), (11, 1541375), (19, 892375), (25, 678205), (55, 308275), (59, 287375), (95, 178475), (121, 140125), (125, 135641), (209, 81125), (275, 61655), (295, 57475), (475, 35695), (605, 28025), (649, 26125), (1045, 16225), (1121, 15125), (1375, 12331), (1475, 11495), (2299, 7375), (2375, 7139), (3025, 5605), (3245, 5225)]