18748725

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{223}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 33331200

約数和(自身を除く): 14582475

約数列:

[1, 3, 5, 15, 19, 25, 57, 59, 75, 95, 177, 223, 285, 295, 475, 669, 885, 1115, 1121, 1425, 1475, 3345, 3363, 4237, 4425, 5575, 5605, 12711, 13157, 16725, 16815, 21185, 28025, 39471, 63555, 65785, 84075, 105925, 197355, 249983, 317775, 328925, 749949, 986775, 1249915, 3749745, 6249575, 18748725]

約数ペア:

[(1, 18748725), (3, 6249575), (5, 3749745), (15, 1249915), (19, 986775), (25, 749949), (57, 328925), (59, 317775), (75, 249983), (95, 197355), (177, 105925), (223, 84075), (285, 65785), (295, 63555), (475, 39471), (669, 28025), (885, 21185), (1115, 16815), (1121, 16725), (1425, 13157), (1475, 12711), (3345, 5605), (3363, 5575), (4237, 4425)]