72841515

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{863}}^1$

素因数の和:1219

約数の個数: 32

約数和(自身を含む): 123918336

約数和(自身を除く): 51076821

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 331, 863, 993, 1655, 2589, 4315, 4965, 5627, 12945, 14671, 16881, 28135, 44013, 73355, 84405, 220065, 285653, 856959, 1428265, 4284795, 4856101, 14568303, 24280505, 72841515]

約数ペア:

[(1, 72841515), (3, 24280505), (5, 14568303), (15, 4856101), (17, 4284795), (51, 1428265), (85, 856959), (255, 285653), (331, 220065), (863, 84405), (993, 73355), (1655, 44013), (2589, 28135), (4315, 16881), (4965, 14671), (5627, 12945)]