28216515

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{283}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 50220288

約数和(自身を除く): 22003773

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 283, 289, 345, 391, 849, 867, 1173, 1415, 1445, 1955, 4245, 4335, 4811, 5865, 6509, 6647, 14433, 19527, 19941, 24055, 32545, 33235, 72165, 81787, 97635, 99705, 110653, 245361, 331959, 408935, 553265, 1226805, 1659795, 1881101, 5643303, 9405505, 28216515]

約数ペア:

[(1, 28216515), (3, 9405505), (5, 5643303), (15, 1881101), (17, 1659795), (23, 1226805), (51, 553265), (69, 408935), (85, 331959), (115, 245361), (255, 110653), (283, 99705), (289, 97635), (345, 81787), (391, 72165), (849, 33235), (867, 32545), (1173, 24055), (1415, 19941), (1445, 19527), (1955, 14433), (4245, 6647), (4335, 6509), (4811, 5865)]