81141285

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{1249}}^1$

素因数の和:1389

約数の個数: 32

約数和(自身を含む): 133920000

約数和(自身を除く): 52778715

約数列:

[1, 3, 5, 15, 61, 71, 183, 213, 305, 355, 915, 1065, 1249, 3747, 4331, 6245, 12993, 18735, 21655, 64965, 76189, 88679, 228567, 266037, 380945, 443395, 1142835, 1330185, 5409419, 16228257, 27047095, 81141285]

約数ペア:

[(1, 81141285), (3, 27047095), (5, 16228257), (15, 5409419), (61, 1330185), (71, 1142835), (183, 443395), (213, 380945), (305, 266037), (355, 228567), (915, 88679), (1065, 76189), (1249, 64965), (3747, 21655), (4331, 18735), (6245, 12993)]