18274725

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{283}}^1$

素因数の和:347

約数の個数: 72

約数和(自身を含む): 38455872

約数和(自身を除く): 20181147

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 41, 45, 63, 75, 105, 123, 175, 205, 225, 283, 287, 315, 369, 525, 615, 849, 861, 1025, 1415, 1435, 1575, 1845, 1981, 2547, 2583, 3075, 4245, 4305, 5943, 7075, 7175, 9225, 9905, 11603, 12735, 12915, 17829, 21225, 21525, 29715, 34809, 49525, 58015, 63675, 64575, 81221, 89145, 104427, 148575, 174045, 243663, 290075, 406105, 445725, 522135, 730989, 870225, 1218315, 2030525, 2610675, 3654945, 6091575, 18274725]

約数ペア:

[(1, 18274725), (3, 6091575), (5, 3654945), (7, 2610675), (9, 2030525), (15, 1218315), (21, 870225), (25, 730989), (35, 522135), (41, 445725), (45, 406105), (63, 290075), (75, 243663), (105, 174045), (123, 148575), (175, 104427), (205, 89145), (225, 81221), (283, 64575), (287, 63675), (315, 58015), (369, 49525), (525, 34809), (615, 29715), (849, 21525), (861, 21225), (1025, 17829), (1415, 12915), (1435, 12735), (1575, 11603), (1845, 9905), (1981, 9225), (2547, 7175), (2583, 7075), (3075, 5943), (4245, 4305)]