15813875

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:117

約数の個数: 64

約数和(自身を含む): 25878528

約数和(自身を除く): 10064653

約数列:

[1, 5, 7, 11, 25, 31, 35, 53, 55, 77, 125, 155, 175, 217, 265, 275, 341, 371, 385, 583, 775, 875, 1085, 1325, 1375, 1643, 1705, 1855, 1925, 2387, 2915, 3875, 4081, 5425, 6625, 8215, 8525, 9275, 9625, 11501, 11935, 14575, 18073, 20405, 27125, 41075, 42625, 46375, 57505, 59675, 72875, 90365, 102025, 126511, 205375, 287525, 298375, 451825, 510125, 632555, 1437625, 2259125, 3162775, 15813875]

約数ペア:

[(1, 15813875), (5, 3162775), (7, 2259125), (11, 1437625), (25, 632555), (31, 510125), (35, 451825), (53, 298375), (55, 287525), (77, 205375), (125, 126511), (155, 102025), (175, 90365), (217, 72875), (265, 59675), (275, 57505), (341, 46375), (371, 42625), (385, 41075), (583, 27125), (775, 20405), (875, 18073), (1085, 14575), (1325, 11935), (1375, 11501), (1643, 9625), (1705, 9275), (1855, 8525), (1925, 8215), (2387, 6625), (2915, 5425), (3875, 4081)]