28489806

素因数分解:

$2^1\times 3^5\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:140

約数の個数: 72

約数和(自身を含む): 67230072

約数和(自身を除く): 38740266

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 61, 62, 81, 93, 122, 162, 183, 186, 243, 279, 366, 486, 549, 558, 837, 961, 1098, 1647, 1674, 1891, 1922, 2511, 2883, 3294, 3782, 4941, 5022, 5673, 5766, 7533, 8649, 9882, 11346, 14823, 15066, 17019, 17298, 25947, 29646, 34038, 51057, 51894, 58621, 77841, 102114, 117242, 153171, 155682, 175863, 233523, 306342, 351726, 459513, 467046, 527589, 919026, 1055178, 1582767, 3165534, 4748301, 9496602, 14244903, 28489806]

約数ペア:

[(1, 28489806), (2, 14244903), (3, 9496602), (6, 4748301), (9, 3165534), (18, 1582767), (27, 1055178), (31, 919026), (54, 527589), (61, 467046), (62, 459513), (81, 351726), (93, 306342), (122, 233523), (162, 175863), (183, 155682), (186, 153171), (243, 117242), (279, 102114), (366, 77841), (486, 58621), (549, 51894), (558, 51057), (837, 34038), (961, 29646), (1098, 25947), (1647, 17298), (1674, 17019), (1891, 15066), (1922, 14823), (2511, 11346), (2883, 9882), (3294, 8649), (3782, 7533), (4941, 5766), (5022, 5673)]